The invention relates to compounds of antihypertensive and antithrombotic activity of the formula or its pharmaceutically acceptable salt: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, or lower alkoxyphenyl, R.sup.2 is hydrogen or lower alkyl, R.sup.4 is lower alkyl, R.sup.6 is hydrogen or lower alkyl, R.sup.7 is lower alkyl which is optionally substituted by hydroxy or lower alkanoyloxy, and R.sup.10 is hydrogen or lower alkyl which is optionally substituted by carboxy or esterified carboxy.
Synthesis of dienoic acids and esters by cationic palladium complex catalyzed carbonylation of alkynols and alkynediols
作者:Keun Tae Huh、Akihiro Orita、Howard Alper
DOI:10.1021/jo00077a008
日期:1993.12
The cationic palladium(II) aquo hydride, trans-(Cy3P)2Pd(H)(H2O)+BF4-, is an excellent catalyst for the carbonylation of alkynols to dienoic acids and esters and of alkynediols to cross-conjugated diesters.