Synthesis of .gamma.- and .delta.-lactones by free-radical annelation of Se-phenyl selenocarbonates
摘要:
A general method for the synthesis of gamma- and delta-lactones through the intramolecular addition of alkoxycarbonyl radicals, formed by reaction of Se-phenylselenocarbonates with n-Bu3SnH, onto carbon-carbon multiple bonds is described. This free-radical cyclization is characterized by high regioselectivity favoring exo addition and by a high ratio of cyclization to reduction. Monocyclic, fused bicyclic, and spirocyclic lactones are formed in good to excellent yield. Use of allyltri-n-butyltin as a chain-transfer agent in the place of n-Bu3SnH affords the corresponding 3-butenyl lactones.
The present invention provides compounds, pharmaceutically acceptable compositions thereof, and methods of using the same.
本发明提供了化合物、药学上可接受的组合物以及使用它们的方法。
一类抑制丙肝病毒的大环状杂环化合物及其 制备和用途
申请人:上海长森药业有限公司
公开号:CN107074876B
公开(公告)日:2019-12-20
本申请涉及一类抑制HCV的化合物,所述化合物由式A表示。本申请还涉及该类化合物的制备和制药用途。
[EN] MACROCYCLIC OXIMYL HEPATITIS C SERINE PROTEASE INHIBITORS<br/>[FR] INHIBITEURS MACROCYCLIQUES, DE TYPE OXIMYLE, DES PROTÉASES À SÉRINE DU VIRUS DE L'HÉPATITE C
申请人:ENANTA PHARM INC
公开号:WO2009079352A1
公开(公告)日:2009-06-25
The present invention relates to compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising a compound of the present invention.
MACROCYCLIC TETRAZOLYL HEPATITIS C SERINE PROTEASE INHIBITORS
申请人:Sun Ying
公开号:US20090142299A1
公开(公告)日:2009-06-04
The present invention relates to compounds of Formula I, II, III or IV, or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising a compound of the present invention.