- CYCLIC COMPOUNDS AND METHODS OF USING SAME
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The present application relates to compounds of Formula (I), as defined herein, and pharmaceutically acceptable salts thereof. The present application also describes pharmaceutical composition comprising a compound of Formula (I), and pharmaceutically acc
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Page/Page column 256-257
(2021/06/11)
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- Hydroxylamine-Derived Reagent as a Dual Oxidant and Amino Group Donor for the Iron-Catalyzed Preparation of Unprotected Sulfinamides from Thiols
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An iron catalyzed reaction for the selective transformation of thiols (-SH) to sulfinamides (-SONH2) by a direct transfer of -O and free -NH2 groups has been developed. The reaction operates under mild conditions using a bench stable hydroxylamine derived reagent, exhibits broad functional group tolerance, is scalable and proceeds without the use of any precious metal catalyst or additional oxidant. This novel, practical reaction leads to the formation of two distinct new bonds (S=O and S?N) in a single step to chemoselectively form valuable, unprotected sulfinamide products. Preliminary mechanistic studies implicate the role of the alcoholic solvent as an oxygen atom donor.
- Chatterjee, Sayanti,Makai, Szabolcs,Morandi, Bill
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supporting information
p. 758 - 765
(2020/11/30)
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- 2-AMINO-N-(AMINO-OXO-ARYL-LAMBDA6-SULFANYLIDENE)ACETAMIDE COMPOUNDS AND THEIR THERAPEUTIC USE
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The present invention pertains generally to the field of therapeutic compounds. More specifically the present invention pertains to certain 2-amino-N-(amino-oxo-aryl-λ6- sulfanylidene)acetamide compounds (referred to herein as ANASIA compounds) that, inter alia, inhibit (e.g., selectively inhibit) bacterial aminoacyl-tRNA synthetase (aaRS) (e.g., bacterial leucyl-tRNA synthetase, LeuRS). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit (e.g., selectively inhibit) bacterial aminoacyl-tRNA synthetase; to treat disorders that are ameliorated by the inhibition (e.g., selective inhibition) of bacterial aminoacyl-tRNA synthetase; to treat bacterial infections; etc.
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Page/Page column 107; 108; 109
(2021/06/26)
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- Discovery of N-Cyano-sulfoximineurea Derivatives as Potent and Orally Bioavailable NLRP3 Inflammasome Inhibitors
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NLRP3 inflammasome mediated release of interleukin-1β (IL-1β) has been implicated in various diseases. In this study, rationally designed mimics of sulfonylurea moiety were investigated as NLRP3 inhibitors. Our results culminated into discovery of series of unprecedented N-cyano sulfoximineurea derivatives as potent NLRP3 inflammasome inhibitors. Compound 15 (IC50 = 7 nM) and analogues were found to be highly potent and selective NLRP3 inflammasome inhibitor with good pharmacokinetic profile. These effects translate in vivo, as 15, 29, and 34 significantly inhibit NLRP3 dependent IL-1β secretion in mice.
- Agarwal, Sameer,Sasane, Santosh,Shah, Hardik A.,Pethani, Jignesh P.,Deshmukh, Prashant,Vyas, Vismit,Iyer, Pravin,Bhavsar, Harsh,Viswanathan, Kasinath,Bandyopadhyay, Debdutta,Giri, Poonam,Mahapatra, Jogeswar,Chatterjee, Abhijit,Jain, Mukul R.,Sharma, Rajiv
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supporting information
p. 414 - 418
(2020/03/13)
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- Silicon-Free SuFEx Reactions of Sulfonimidoyl Fluorides: Scope, Enantioselectivity, and Mechanism
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SuFEx reactions, in which an S?F moiety reacts with a silyl-protected phenol, have been developed as powerful click reactions. In the current paper we open up the potential of SuFEx reactions as enantioselective reactions, analyze the role of Si and outline the mechanism of this reaction. As a result, fast, high-yielding, “Si-free” and enantiospecific SuFEx reactions of sulfonimidoyl fluorides have been developed, and their mechanism shown, by both experimental and theoretical methods, to yield chiral products.
- Baggerman, Jacob,Jordaan, Daan,Liang, Dong-Dong,Streefkerk, Dieuwertje E.,Wagemakers, Jorden,Zuilhof, Han
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supporting information
p. 7494 - 7500
(2020/03/23)
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- N-Trifluoromethylthiolated Sulfonimidamides and Sulfoximines: Anti-microbial, Anti-mycobacterial, and Cytotoxic Activity
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Herein we demonstrate the expanded utility of a recently described N-trifluoromethylthiolation protocol to sulfonimidamide containing substances. The novel N-trifluoromethylthio sulfonimidamide derivatives thus obtained were evaluated for antibacterial activity against Mycobacterium tuberculosis (M. tb.) and Mycobacterium abscessus and Gram + Ve (Streptococcus aureus, Bacillus subtilis), and Gram - Ve (Escherichia coli, Pseudomonas aeruginosa) bacteria. Two compounds, 13 and 15 showed high antimycobacterial activity with MIC value of 4-8 μg/mL; i.e. comparable to WHO recommended first line antibiotic for TB infection ethambutol. The same compounds were also found to be cytotoxic in HepG2 cells (compound 13 IC50 = 15 μg/mL; compound 15 IC50 = 65 μg/mL). A structure activity relationship, using matched pair analysis, gave the unexpected conclusion that the trifluoromethylthio moiety was responsible for the cellular and bacterial toxicity. Given the increasing use of the trifluoromethylthio group in contemporary medicinal chemistry, this observation calls for considerations before implementation of the functionality in drug design.
- Thota, Niranjan,Makam, Parameshwar,Rajbongshi, Kamal K.,Nagiah, Savania,Abdul, Naeem Sheik,Chuturgoon, Anil A,Kaushik, Amit,Lamichhane, Gyanu,Somboro, Anou M.,Kruger, Hendrik G.,Govender, Thavendran,Naicker, Tricia,Arvidsson, Per I
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p. 1457 - 1461
(2019/10/11)
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- NOVEL SUBSTITUTED SULFOXIMINE COMPOUNDS
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The present invention relates to novel heterocyclic compounds of the general formula (I) their pharmaceutically acceptable salts, pharmaceutically acceptable solvates, enantiomers, diastereomers and polymorphs. The invention also relates to processes for the preparation of the compounds of invention, pharmaceutical compositions containing the compounds and their use as the compounds of the invention belong to the family of NOD-like receptor family (NLR) protein NLRP3 modulators. The present invention thus relates to novel NLRP3 modulators as well as to the use of the novel inhibitor compounds in the treatment of diseases or conditions as well as treatment of disease states mediated by NLRP3 as well as treatment of diseases or conditions in which interleukin 1β activity and interleukin-18 (IL-18) is implicated.
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Page/Page column 16; 17
(2019/01/06)
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- Fe(III)/ l -Valine-Catalyzed One-Pot Synthesis of N -Sulfinyl- and N -Sulfonylimines via Oxidative Cascade Reaction of Alcohols with Sulfinamides or Sulfonamides
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An efficient Fe(III), l -valine, and 4-OH-TEMPO catalytic system was found for the oxidation of alcohols followed by condensation with sulfinamide or sulfonamide in one pot for the synthesis of N -sulfinyl- and N- sulfonylimines compounds under mild conditions. This transformation accommodates a variety of substrates, shows high functional-group tolerance, and affords the corresponding products in good to excellent yields.
- Zhang, Guofu,Xing, Yunzhe,Xu, Shengjun,Ding, Chengrong,Shan, Shang
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supporting information
p. 1232 - 1238
(2018/03/23)
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- Verkade's Superbase as an Organocatalyst for the Strecker Reaction
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Proazaphosphatranes -Verkade's superbases- proved to be efficient organocatalysts for the Strecker reaction between protected imines and trimethylsilyl cyanide (TMSCN). Excellent to quantitative yields were reached and, compared to other systems, only low
- Yang, Jian,Chatelet, Bastien,Ziarelli, Fabio,Dufaud, Véronique,Hérault, Damien,Martinez, Alexandre
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supporting information
p. 6328 - 6332
(2018/11/23)
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- An Asymmetric Pathway to Dendrobine by a Transition-Metal-Catalyzed Cascade Process
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An asymmetric pathway to the caged tetracyclic pyrrolidine alkaloid, dendrobine, is reported. The successful synthetic strategy features a one-pot, sequential palladium-catalyzed enyne cycloisomerization and rhodium-catalyzed diene-assisted pyrrolidine formation by allylic CH activation. The developed transition-metal-catalyzed cascade process permits rapid access to the dendrobine core structure and circumvents the handling of labile intermediates. An intramolecular aldol condensation under carefully defined reaction conditions takes place with a concomitant detosylation, followed by reductive amine methylation, to afford a late-stage intermediate (previously identified by several prior dendrobine syntheses) in only 10 synthetic steps overall.
- Lee, Yujin,Rochette, Elise M.,Kim, Junyong,Chen, David Y.-K.
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supporting information
p. 12250 - 12254
(2017/09/06)
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- Nickel-Catalyzed Cross-Electrophile Coupling of Alkyl Fluorides: Stereospecific Synthesis of Vinylcyclopropanes
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The stereospecific reductive cross-electrophile coupling reaction of 2-vinyl-4-halotetrahydropyrans for vinylcyclopropane synthesis is reported. The nickel-catalyzed reaction occurs with both alkyl fluorides and alkyl chlorides. To the best of our knowledge, this is the first reported cross-electrophile coupling reaction of an alkyl fluoride. Ring contraction proceeds with high stereospecificity, providing selective synthesis of either diastereomer of di- and trisubstituted cyclopropanes. The utility of this methodology is demonstrated by several synthetic applications including the synthesis of the natural product dictyopterene A. 2-Vinyl-4-fluorotetrahydrofurans also undergo stereospecific ring contractions, providing access to synthetically useful hydroxymethyl cyclopropanes.
- Erickson, Lucas W.,Lucas, Erika L.,Tollefson, Emily J.,Jarvo, Elizabeth R.
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supporting information
p. 14006 - 14011
(2016/11/06)
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- Mild and general method for the synthesis of sulfonamides
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Reaction of methyl sulfinates with lithium amides followed by 3-chloroperoxybenzoic acid oxidation of the resulting sulfinamides provides primary, secondary, and tertiary alkane-, arene-and heteroarenesulfonamides in high yields. This constitutes a mild and facile experimental protocol that avoids the use of hazardous, unstable, or volatile reagents and does not affect the configurational stability of the amines. Georg Thieme Verlag Stuttgart.
- Garcia Ruano, Jose Luis,Parra, Alejandro,Yuste, Francisco,Mastranzo, Virginia M.
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p. 311 - 319
(2008/12/22)
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- The 3-(3-pyridine)propionyl anchor group for protease-catalyzed resolutions: p-toluenesulfinamide and sterically hindered secondary alcohols
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Compared to an acetyl acyl group, the 3-(3-pyridine)propionyl group increases substrate binding to many proteases and substrate solubility in water, thereby increasing the rates of protease-catalyzed reactions. For example, proteases reacted up to six hundred-fold faster with the 3-(3-pyridine)propionyl ester of 1-phenylethanol than with the corresponding acetate ester. In addition, the 3-(3-pyridine)propionyl group enables a simple, mild acid extraction to separate the remaining starting material and product. To demonstrate the synthetic usefulness of this strategy, we resolved multi-gram quantities of (R)- and (S)-p-toluenesulfinamide with α-chymotrypsin and gram quantities of (R)- and (S)-2,2-dimethylcyclopentanol with subtilisin Carlsberg. The 3-(3-pyridyl)propionyl group was better for these resolutions than the corresponding acetate or dihydrocinnamate because it decreased the reaction time due to increased reactivity, decreased the reaction volume due to increased substrate solubility and enabled purification without chromatography. Molecular modeling suggests the enantioselectivity of α-chymotrypsin toward (R)-p-toluenesulfinamide is high (E = 52) because of a favorable hydrophobic interaction between the p-tolyl group of the fast-reacting (R)-enantiomer and leaving group pocket. The enantioselectivity of subtilisin Carlsberg toward (S)-2,2-dimethylcyclopentanol is high (E = 43) because the large substituent (the 2,2-dimethyl quaternary carbon) of the slow-reacting (R)-enantiomer cannot fit in the S1′ leaving group pocket.
- Savile, Christopher K.,Kazlauskas, Romas J.
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p. 1183 - 1192
(2007/10/03)
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- A new general method for the preparation of N-sulfonyloxaziridines
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(Chemical Equation Presented) A simple procedure to obtain N-alkylsulfonyl- and N-arylsulfonyloxaziridines from the corresponding N-sulfinylimines involving a one-pot, two-step oxidation process with m-CPBA (1 equiv) and m-CPBA/KOH (1.1 equiv) is reported
- Garcia Ruano, Jose Luis,Aleman, Jose,Fajardo, Cristina,Parra, Alejandro
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p. 5493 - 5496
(2007/10/03)
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- A general method for the preparation of N-sulfonyl aldimines and ketimines
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(Chemical Equation Presented) A simple procedure to obtain N-sulfonyl imines involving the condensation of carbonyl compounds with p-tolyl or tert-butyl sulfinamides followed by oxidation with m-CPBA of the resulting N-sulfinylimines is reported. The meth
- García Ruano, José Luis,Alemán, José,Cid, M. Belén,Parra, Alejandro
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p. 179 - 182
(2007/10/03)
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- Unexpected subtilisin-catalyzed hydrolysis of a sulfinamide bond in preference to a carboxamide bond in N-acyl sulfinamides
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Subtilisin Carlsberg-catalyzed hydrolysis of N-chloroacetyl p-toluenesulfinamide favored cleavage of the sulfinamide (S(O)-N) bond with a minor amount (~25%) of the expected carboxamide (C(O)-N) bond. The sulfinamide hydrolysis was enantioselective (E ~ 17) and yielded remaining starting material enriched in the R-enantiomer and achiral product, sulfinic acid and chloroacetamide, as confirmed by mass spectra and NMR. In contrast, the related subtilisin BPN′ and E favored the carboxamide hydrolysis. Hydrolysis of the pseudo-symmetrical N-p-toluoyl p-toluenesulfinamide, which contains a sulfinamide and a carboxamide in similar steric and electronic environments, gave only sulfinamide cleavage (>10:1) for subtilisin Carlsberg, showing that sulfinamide cleavage is the preferred path even when a similar carboxamide is available. Copyright
- Mugford, Paul F.,Magloire, Vladimir P.,Kazlauskas, Romas J.
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p. 6536 - 6537
(2007/10/03)
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- p-Tolylsulfinyl Amides: Reagents for Facile Electrophilic Functionalization of Olefins
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A variety of olefins were found to react with sulfinyl amides in the presence of POCl3 to give β-chlorosulfides and β-hydroxysulfides in good yields. In the absence of nucleophiles, p-tolylsulfinyl amides were found to react with olefins with the formation of allylsulfoxides.
- Krasnova, Larissa B.,Yudin, Andrei K.
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p. 2584 - 2587
(2007/10/03)
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- Chiral N-Acyl-tert-butanesulfinamides: The "Safety-Catch" Principle Applied to Diastereoselective Enolate Alkylations
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Diastereoselective enolate alkylation reactions of N-acylsulfmamides and conversion of the alkylation products to a variety of enantiopure products are reported. Several sulfinamides were prepared in solution followed by acylation to provide N-acylsulfmamides. The N-acylsulfinamides were then evaluated in diastereoselective enolate alkylation reactions. Of the sulfinamides evaluated, tert-butanesulfinamide provided the highest diastereoselectivity. To establish the potential utility of sulfinamides as versatile auxiliaries, methods were developed for (1) the racemization-free acylation of tert-butanesulfinamide to prepare optically pure N-acyl-tert-butanesulfinamides, (2) the diastereoselective C-alkylation of N-acyl-tert-butanesulfmamides, (3) the conversion of the N-acyl-tert-butanesulfmamides to the active ester equivalent by N-alkylation and S-oxidation, and (4) the cleavage of the N-alkyl-N-acyl-tert-butanesulfonamides to give chiral alcohol, ester, amide, and carboxylic acid target compounds. These studies provide the groundwork for the development of sulfinamides as dual chiral auxiliaries and linkers for the multistep solid-phase synthesis of enantioenriched compounds.
- Backes, Bradley J.,Dragoli, Dean R.,Ellman, Jonathan A.
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p. 5472 - 5478
(2007/10/03)
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- CONVENIENT ONE-POT SYNTHESIS OF ARENESULFINAMIDES: REACTIONS OF 4-NITROPHENYL SUBSTITUTED PHENYL SULFOXIDES WITH ELEMENTAL SULFUR IN LIQUID AMMONIA
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Various arenesulfinamides were synthesized in good yields by one-pot reactions of 4-nitrophenyl-substituted phenyl sulfoxides with elemental sulfur in liquid ammonia.The arenesulfinamides were further reduced with elemental sulfur in liquid ammonia to give corresponding disulfides.
- Sato, Ryu,Chiba, Shuji,Takikawa, Yuji,Takizawa, Saburo,Saito, Minoru
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p. 535 - 538
(2007/10/02)
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