78999-24-3Relevant academic research and scientific papers
Stereoselective Synthesis of β-Amino Ynones by the Addition of Alkynones to Nonracemic Sulfinimines: Formal Total Synthesis of l-Xylo and l-Arabino Phytosphingosines
Prasad, Kavirayani R.,Reddy, Arava Amaranadha,Reddy, Polimera Obula
, p. 2743 - 2751 (2020)
The addition of silyl enol ethers obtained from ynones to sulfinimines furnished the corresponding β-sulfinamido ynones in a very good yield and diastereoselectivity. The formed ynones serve as precursors amenable for the synthesis of bioactive compounds.
A stereoselective approach for the total synthesis of (5R,7R,9R)-7,9-dihydroxy-5-decanolide#
Manikanta, Gembali,Radha Krishna, Palakodety
, p. 2893 - 2895 (2018)
A stereoselective approach for the total synthesis of lactone (5R,7R,9R)-7,9-dihydroxy-5-decanolide is described. The sequence of synthetic reactions involves a Keck asymmetric allylation, diastereoselective iodo-carbonate cyclization, regioselective ring
Nonstabilized N-unsubstituted azomethine ylides: A synthesis of indolizidine 239CD
Clark, Roger B.,Pearson, William H.
, p. 349 - 351 (1999)
(equation presented) Treatment of a (2-azaallyl)stannane with HF·pyridine generated a nonstabilized N-unsubstituted azomethine ylide, which was found to undergo an efficient and stereoselective dipolar cycloaddition with phenyl vinyl sulfone to produce a
XANOMELINE DERIVATIVES AND METHODS FOR TREATING NEUROLOGICAL DISORDERS
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Paragraph 0216-0217, (2021/05/21)
Provided herein are compounds comprising compounds of formula (I) and/or salts thereof; wherein at least one of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13 is fluorine, and the remainder are independently chosen from hydrogen and fluorine; and R14, R15, R16, R17, R18, R19, R20, R21, R22, and R23 are independently chosen from hydrogen and deuterium; with the proviso that when R1, R2, and R3 are fluorine, then at least one of R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13 is fluorine or at least one of R14, R15, R16, R17, R18, R19, R20, R21, R22, and R23is deuterium. Also provided are medicaments comprising these compounds and methods for treating central nervous system disorders with the compounds and medicaments described herein.
ASPARAGINE DERIVATIVES AND METHODS OF USE THEREOF
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Paragraph 001098; 001100-001101, (2021/12/31)
The present invention relates to compounds of formulas (A) and (I), pharmaceutically acceptable salts thereof, and solvates of any of them, pharmaceutical compositions comprising them, methods of preparation thereof, intermediate compounds useful for the preparation thereof, and methods of treatment or prophylaxis of diseases, in particular cancer, such as colorectal cancer, using these. (A) (I)
Highly Selective Hydrogenation of C═C Bonds Catalyzed by a Rhodium Hydride
Gu, Yiting,Lisnyak, Vladislav G.,Norton, Jack R.,Salahi, Farbod,Snyder, Scott A.,Zhou, Zhiyao
supporting information, p. 9657 - 9663 (2021/07/19)
Under mild conditions (room temperature, 80 psi of H2) Cp*Rh(2-(2-pyridyl)phenyl)H catalyzes the selective hydrogenation of the C═C bond in α,β-unsaturated carbonyl compounds, including natural product precursors with bulky substituents in the β position and substrates possessing an array of additional functional groups. It also catalyzes the hydrogenation of many isolated double bonds. Mechanistic studies reveal that no radical intermediates are involved, and the catalyst appears to be homogeneous, thereby affording important complementarity to existing protocols for similar hydrogenation processes.
PYRIDINE COMPOUND SUBSTITUTED WITH AZOLE
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Paragraph 1301, (2020/07/07)
The present invention provides a compound represented by formula [I] shown below or a pharmaceutically acceptable salt thereof that has an inhibitory effect on 20-HETE producing enzyme. (in formula [I] above, the structure represented by formula [II] below: represents any of the structures represented by formula group [III] below: R1, R2, R3, and R4 independently represent a hydrogen atom, a fluorine atom, methyl, or the like, R5 represents any of the structures represented by formula group [IV]:
CYCLIC PEPTIDE ANTIBIOTICS
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Paragraph 00269, (2019/04/11)
Provided herein are antibacterial compounds, wherein the compounds in some embodiments have broad spectrum bioactivity. In various embodiments, the compounds act by inhibition of lipoprotein signal peptidase II (LspA), a key protein in bacteria. Pharmaceutical compositions and methods for treatment using the compounds described herein are also provided.
Copper(I)-catalyzed stereodivergent propargylation of N-acetyl mannosamine for protecting group minimal synthesis of C3-substituted sialic acids
Ishizawa, Kouhei,Majima, Sohei,Wei, Xiao-Feng,Mitsunuma, Harunobu,Shimizu, Yohei,Kanai, Motomu
, p. 10615 - 10628 (2019/09/30)
Copper(I)-catalyzed stereodivergent nucleophilic propargylation at the anomeric carbon of unprotected N-acetyl mannosamine was developed using 3-substituted allenylboronates as a nucleophile. The homopropargylic alcohol products contained two contiguous s
Thiocyanate radical mediated dehydration of aldoximes with visible light and air
Ban, Yong-Liang,Dai, Jian-Ling,Jin, Xiao-Ling,Zhang, Qing-Bao,Liu, Qiang
supporting information, p. 9701 - 9704 (2019/08/15)
We developed a new means of activating aldoximes by an in situ generated thiocyanate radical from ammonium thiocyanate and molecular oxygen at room temperature. With a catalytic amount of organic dye aizenuranine as the photocatalyst, the dehydration of aldoximes proceeds smoothly under visible light irradiation, providing a simple to handle, excellent functional group tolerance, and metal-free protocol for a wide range of nitriles.
