New general synthesis of medium ring-lactones a regioselective β-scission of alkoxyl radicals generated from catacondensed lactols
作者:Hiroshi Suginome、Shinji Yamada
DOI:10.1016/s0040-4020(01)81628-8
日期:1987.1
describe a newgeneral method for the synthesis of medium-sized lactones based on ring-enlargement via a regioselective β-scission of alkoxyl radicals generated by photolysis from the hypoiodites of several catacondensed lactols. The syntheses of 9-membered lactones from 65 fused lactols, 10-membered lactones including a naturally occurring lactone, phoracantholide I, from 66 or 75 fused lactols, and
SUGINOME, HIROSHI;YAMADA, SHINJI, TETRAHEDRON, 43,(1987) N 15, 3371-3386
作者:SUGINOME, HIROSHI、YAMADA, SHINJI
DOI:——
日期:——
US3997557A
申请人:——
公开号:US3997557A
公开(公告)日:1976-12-14
Substituted N-aminoalkylpyrroles
申请人:American Hoechst Corporation
公开号:US03997557A1
公开(公告)日:1976-12-14
Substituted N-aminoalkylpyrroles of the formula: ##STR1## IN WHICH X, Z, R.sub.1, -R.sub.5 and n are as defined below, and their physiologically tolerable acid addition salts are disclosed to have antiarrhythmic, central nervous system depressant, antiinflammatory and antihypertensive activity. A process for their preparation is also disclosed.