40718-32-9

Upstream product

• 105-39-5 chloroacetic acid ethyl ester 
• 91-00-9 Benzhydrylamine 
• 69555-14-2 ethyl N-diphenylmethylene glycine 
• 105-36-2 ethyl bromoacetate 
• 64-17-5 ethanol 
• 40320-60-3 N-benzhydryl 3-azetidinone 

Downstream Products

• 76075-08-6 (Benzhydryl-formyl-amino)-acetic acid ethyl ester 
• 565456-74-8 C₉H₁₇NO₂*ClH 
• 40718-29-4 [N-(diphenylmethyl)amino]acetic acid 
• 69840-07-9 1-benzhydryl-2-mercaptoimidazole-5-methyl carboxylate 
• 82954-73-2 C₂₆H₃₁N₂O₃ 

Relevant academic research and scientific papers

Tandem reductive ring opening-retro-Bingel reactions of bismethano[60]fullerenes to give 1,2-dihydro[60]fullerylglycines

Bismethano[60]fullerene derivatives 1 and 3 give 1,2-dihydro[60]fullerylglycines 2 and 4 respectively by a novel tandem reductive ring opening-retro-Bingel reaction.

Schreiner's Thiourea Promoted [2+2] Cycloaddition of Captodative Azetidinones and Nitroolefins

Strained, captodative benzylideneazetidinones were demonstrated to function as potent reaction partners in thermal [2+2] cycloadditions with nitro alkenes. The relief of strain during the cycloaddition could be leveraged to secure kinetic and thermodynamic stability for the aminonitrocyclobutane ring. Accordingly, this mild and robust procedure could be used to simplify the synthesis of azaspiro[3.3]heptanes, a motif that serves as a rigid piperidine bioisostere.

ORGANIC COMPOUNDS

The invention relates to novel diamines of the formula (I) in which all variables are as defined in the specification, in free base form or in acid addition salt form, to their preparation, to their use as medicaments and to medicaments comprising them.

HETEROCYCLIC AMIDE DERIVATIVES AS CALCIUM CHANNEL BLOCKERS

Methods and compounds effective in ameliorating conditions characterized by unwanted calcium channel activity, particularly unwanted N-type or T-type calcium channel activity are disclosed. Specifically, a series of heterocyclic amides are disclosed of the general formula (I) where Z is N or CHNR2 and X is NR2, O, S, S=O or SO2. Among other definitions for R, R1, W and Y, the compounds of formula (1) are further characterized by at least one of W or Y being CR3Ar2 where Ar is an aromatic or heteroaromatic ring (for example, where W or Y is a benzhydryl moiety).

ISOXAZOLE DERIVATIVES AS CALCIUM CHANNEL BLOCKERS

Methods and compounds effective in ameliorating conditions characterized by unwanted calcium channel activity, particularly unwanted N-type or T-type calcium channel activity are disclosed. Specifically, a series of isoxazole containing compounds are disclosed of the general formula (1) where Z is N or CHNR3 and (Ar1)2CR4 is optionally substituted benzhydryl.

Photoreduction of imines. An environmentally friendly approach to obtain amines

The photoreduction of different imines to amines in alcoholic solvents is reported. The reduction involves a versatile and chemoselective methodology that is environmentally friendly in that it avoids the use of metal hydrides and other dangerous reducing agents.

Synthesis and characterization of mono- and bis-methano[60]fullerenyl amino acid derivatives and their reductive ring-opening retro-bingel reactions.

The addition of N-(diphenylmethylene)glycinate esters (Ph2C=NCH2CO2R) 3-6 to [60]fullerene under Bingel conditions gives, respectively, the methano[60]fullerenyl iminoesters 7-10. Upon treatment of 7-9 with sodium cyanoborohydride, in the presence of a protic or a Lewis acid, a novel reductive ring-opening reaction occurred to give the corresponding 1,2-dihydro[60]fullerenyl glycine derivatives 11-13. Using tethered bis-N-(diphenylmethylene)glycinate esters 33 and 34derived from m- and p-benzenedimethanol scaffolds, the corresponding bis-methano[60]fullerenyl iminoesters 35-38 were synthesized under double Bingel reaction conditions. The m-benzenedimethanol derivative 33 gave the trans-4 (35) and cis-3 (36) regioisomeric bisadducts in a ratio of 80:20. The analogous para-tethered derivative 34 afforded the trans-3 (37) and trans-4 (38) regioisomers in a 80:20 ratio. The regiochemistry of the major bisadducts 35 and 37 (via the trans-esterified 39) were unequivocally determined using 2D INADEQUATE and C-C TOCSY NMR experiments. The regiochemistry of these bis-additions were unexpected on the basis of literature precedents. These results unequivocally show that the regiochemistry of tethered bis-additions is not solely dependent on the nature of the tether. A mixture of the trans-4 and cis-3 nonsymmetrical bisadducts 45 and 46 was obtained from the double-Bingel cyclopropanation of a bis-N-(diphenylmethylene)glycinate tether based on a 1,3-naphthyldimethanol scaffold. The regiochemistry of these compounds (45 and 46) was identified by correlation with the diethyl esters 40 and 47, prepared by trans-esterification of 35/45 and 36/46, respectively. The INADEQUATE and molecular modeling experiments allowed topological mapping of the fullerene surfaces of the bis-methano[60]fullerenes 38 and 42. Reductive ring-opening reactions on the tethered bis-methano[60]fullerenes 35-37, 45, and 46 gave none of the expected bis-fullerenylglycinates rather the reductive ring-opening-retro-Bingel products, the 1,2-dihydro[60]fullerenylglycinates 48, 49, 52, and 53. These compounds resulted from the reductive ring-opening of one methanoimino ester moiety and a retro-Bingel reaction of the other. Under analogous reductive ring-opening-retro-Bingel conditions, the nontethered bis-methano[60]fullerene 40 afforded the 1,2-dihydro[60]fullerenylglycinate 12. Thus, it was concluded that the tether was not the driving force for the reductive elimination of one of the methano groups.

Imidazole derivatives with potential biological activity

A series of 1-substituted imidazole-5-carbohydroxamic acids Ia, Ib and Ie were prepared from the corresponding 5-methoxycarbonyl imidazoles (IX) obtained by a univocal synthesis starting with the reaction of the amines (III) with ethylchloroacetate. On treatment of 4(5)-methoxycarbonyl imidazoles (XI) with alkylar halides (X), on the contrary, mixtures of 1-substituted-4(or 5)-methoxycarbonyl imidazoles were obtained that, when separated by thin-layer chromatography, gave the carbohydroxamic acids Ia, Ib, Id and Ie and IIa→f. The structures of the imidazole derivatives were obtained by means of IR, NMR and UV spectra. On carrying out tests of biological activity on these compounds, it had been found that the 5-carbohydroxamic acids possess, compared to the 4-carbohydroxamic ones, a greater activity. Particularly Ib and Ib-HCl seem fairly active against Klebsiella pneumoniae and Clostridium bifermentans, Ib-HCl against Bacillus subtilis, too.