(+)-Trienomycins A, B, C, and F and (+)-Mycotrienins I and II: Relative and Absolute Stereochemistry
作者:Amos B. Smith、John L. Wood、Weichyun Wong、Alexandra E. Gould、Carmelo J. Rizzo、Joseph Barbosa、Kanki Komiyama、Satoshi Ōmura
DOI:10.1021/ja961400i
日期:1996.1.1
The complete relative and absolute stereochemistries have been elucidated for the ansamycin antibiotics (+)-trienomycins A, B, and C and their potent antifungal congeners, the (+)-mycotrienins I and II. A new species, (+)-trienomycin F, has also been isolated and characterized. In addition, an end-game synthetic strategy for the trienomycins and mycotrienins has been developed.
安沙霉素抗生素 (+)-三烯霉素 A、B 和 C 及其有效的抗真菌同源物 (+)-霉菌三烯素 I 和 II 的完整相对和绝对立体化学已经阐明。一个新物种,(+)-trienomycin F,也已被分离和表征。此外,还开发了三烯霉素和霉菌三烯素的最终合成策略。
Novel peptidase inhibitors
申请人:MERRELL DOW PHARMACEUTICALS INC.
公开号:EP0356595A1
公开(公告)日:1990-03-07
This invention relates to analogs of peptidase substrates in which the nitrogen atom of the scissile amide bond of a partial retropeptide analog of the substrate has been replaced by a difluoromethylene moiety. These peptidase substrate analogs provide specific enzyme inhibitors for a variety of proteases, the inhibition of which exert valuable pharmacological activities and therefore have useful physiological consequences in a variety of disease states.
The application is directed to compounds of Formula I:
and pharmaceutically acceptable salts and solvates thereof, wherein R
1
, R
2
, R
3
, R
4a
, and R
4b
are defined as set forth in the specification. The invention is also directed to use of compounds of Formula I to treat disorders responsive to the modulation of one or more opioid receptors, or as synthetic intermediates. Certain compounds of the present invention are especially useful for treating pain.