Control over absolute (R,S), relative (syn,anti) and geometrical (E,Z) stereochemistry in the synthesis of allylically substituted alkenes from diphenylphosphinoyl epoxy alcohols
作者:Jonathan Clayden、Andrew B. McElroy、Stuart Warren
DOI:10.1039/p19950001913
日期:——
Regioselective ring-openings of epoxy alcohols bearing a diphenylphosphinoyl (Ph(2)PO) group give diols which can undergo stereospecific Horner-Wittig elimination. This method was used to make allylic alcohols, unsaturated beta-hydroxy sulfides, homoallylic alcohols and unsaturated amino acids, with control over their absolute (R,S), relative (syn,anti) and geometrical(E,Z) stereochemistry.
MIDLAND, M. M.;KWON, YOUNG, C., TETRAHEDRON LETT., 1985, 26, N 41, 5013-5016
作者:MIDLAND, M. M.、KWON, YOUNG, C.
DOI:——
日期:——
FLUORINATED MACROCYCLIC COMPOUNDS AS HEPATITIS C VIRUS INHIBITORS
申请人:Gai Yonghua
公开号:US20090238794A1
公开(公告)日:2009-09-24
The present invention discloses 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 the compounds of the present invention.
US8372802B2
申请人:——
公开号:US8372802B2
公开(公告)日:2013-02-12
Studies on Chirality Transfer in the [2,3] Sigmatropic Rearrangement of Anions Derived from Trialkylstannylmethyl Allylic Ethers. Stereospecific Synthesis of (2R)-3-Benzyloxy-2-methylpropanol.
作者:M.Mark Midland、Young C. Kwon
DOI:10.1016/s0040-4039(01)80840-6
日期:1985.1
Virtually complete chirality transfer is observed in the [2,3] sigmatropicrearrangement of the anion derivedfrom trialkylstanylmethyl ()- or ()-allylic ethers.