Some reactions of 4-methyl-5,6-dihydropyran and its isomers
作者:U. G. Ibatullin、D. Ya. Mukhametova、S. A. Vasil'eva、R. F. Talipov、L. V. Syurina、M. G. Safarov、S. R. Rafikov
DOI:10.1007/bf00952391
日期:1982.9
Novel Fused Pyrrolocarbazoles
申请人:Becknell Nadine C.
公开号:US20100152196A1
公开(公告)日:2010-06-17
The present invention relates generally to selected fused pyrrolocarbazoles, including pharmaceutical compositions thereof and methods of treating diseases therewith. The present invention is also directed to intermediates and processes for making these fused pyrrolocarbazoles.
US7671064B2
申请人:——
公开号:US7671064B2
公开(公告)日:2010-03-02
US8044064B2
申请人:——
公开号:US8044064B2
公开(公告)日:2011-10-25
Acid-catalyzed and enzymatic hydrolysis of trans- and cis-2-methyl-3,4-epoxytetrahydropyran
作者:Giorgio Catelani、Ettore Mastrorilli
DOI:10.1039/p19830002717
日期:——
microsomal epoxide hydrolase is entirely regiospecific and involves in both cases exclusive attack at C-4. The racemic cis-epoxide reacts at a faster rate than the trans. The 2R,3R,4S-enantiomer of the latter epoxide reacts at a much faster rate than its antipode to yield the (–)-(2R,3R,4R)-diol which is isolated at least 98% optically pure up to almost 50% conversion when starting from the racemic substrate