85390-46-1Relevant academic research and scientific papers
Efficient synthesis of highly enantiopure β-lactam derivatives from biocatalytic transformations of amides and nitriles
Ao, Yu-Fei,Leng, Dong-Hui,Wang, De-Xian,Zhao, Liang,Wang, Mei-Xiang
, p. 4309 - 4316 (2014/06/10)
Catalyzed by Rhodococcus erythropolis AJ270, a nitrile hydratase and amidase containing microbial strain, under mild conditions, kinetic resolution of racemic amides provides an efficient and scalable route to highly enantioenriched R-4-carboxymethyl-β-la
Protecting group migration in the chemistry of 1-t-butyldimethylsilyl-4-hydroxymethyl-2-azetidinone
Gérard, Stéphane,Marchand-Brynaert, Jacqueline
, p. 6339 - 6342 (2007/10/03)
The alkoxide anion derived from 1-t-butyldimethylsilyl-4-hydroxymethyl-2-azetidinone (1) rearranged at -78°C into amide anion by N-O migration of the silyl protecting group. The occurrence of this intermediate was proved by quenching with benzyl bromide and phenethyl chloroformate, giving respectively N-benzyl (4) and N-(phenethyloxycarbonyl) (6) derivatives of 4-(t-butyldimethylsilyloxy)methyl-2-azetidinone.
Heterocyclic compounds containing an alkoxycarbonyl and a substituted methyl group
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, (2008/06/13)
The invention relates to new heterocyclic compound containing an alkoxycarbonyl and a substituted methyl group a process for the preparation of these and analogeous compound and pharmaceutical compositions containing them. More particularly, the invention concerns compounds of the general formula (IVa) STR1 wherein R' is hydrogen, 2-ethoxycarbonylethyl, aryl or a group suitable for a temporary protection of amides and Y' represents a group of the formula --COOZ or --CH2 M, in which Z is lower alkyl and M is hydroxyl, halogen, cyano or a group of the formula --O--SO2 R2, in which R2 is lower alkyl or aryl, with the proviso that if R' is phenyl, Y' cannot stand for the group --COOC2 H5. The invention further relates to a process for the preparation of compounds of the general formula (IV) STR2 in which R and Y are identical with R' and Y', respectively, except the proviso. According to a further aspect of the invention there are provided pharmaceutical compositions, first of all with antihypoxic activity, comprising compounds of the general formula (IVa) as active ingredient.
