DIASTEREOSELECTIVE METHODS FOR SYNTHESIZING COMPOUNDS
申请人:AbbVie Inc.
公开号:US20150065724A1
公开(公告)日:2015-03-05
The present invention is directed to novel synthetic methods for preparing a compound of Structural Formula (I):
wherein R is —H or a hydroxyl protecting group. Also included are synthetic intermediates described herein.
starting materials suffice for the modular synthesis of all possible polypropionate diastereomers. This general method for the diastereoselective synthesis of syn, anti, and methyl ketone aldol adducts utilizes a powerful MgII -mediated, hydroxy-directed nitrile oxide cycloaddition. The free hydroxy group provides an ideal synthetic handle enabling the rapid assembly of complex polyketide structures
Synthesis of 4-Trialkylsilyl(Germyl)-1H-1,2,3-Triazolecarbaldehyde Oximes*
作者:A. S. Medvedeva、M. M. Demina、T. V. Konkova、T. D. Vu、L. I. Larina
DOI:10.1007/s10593-014-1551-y
日期:2014.10
Methods for the synthesis of 4-trialkylsilyl(germyl)-1H-1,2,3-triazole-5-carbaldehyde oximes have been developed. Microwave activation was shown to be highly efficient in the oximation of 1H-1,2,3-triazole-5-carbaldehydes containing silicon or germanium and also in achieving a multicomponent synthesis of 4-trialkylsilyl-1H-1,2,3-triazole-5-carbaldehyde oxime via the reaction of 3-trimethyl-silylprop-2-yn-1-al with trimethylsilyl azide and hydroxylamine.
Stereospecificity of 13C shielding constants in the 13C NMR spectra of 3-substituted propynal oximes
作者:A. V. Afonin、M. M. Demina、T. V. Kon’kova、A. V. Mareev、D. E. Simonenko、I. A. Ushakov、A. S. Medvedeva
DOI:10.1134/s1070428007110243
日期:2007.11
SAFRONOVA, L. P.;MEDVEDEVA, A. S.;VYAZANKIN, N. S., ZH. OBSHCH. XIMII, 1983, 53, N 6, 1313-1315
作者:SAFRONOVA, L. P.、MEDVEDEVA, A. S.、VYAZANKIN, N. S.