摘要:
A compound of the formula: ##STR1## in which R.sup.4 is acyl,R.sup.5 is lower alkyl,R.sup.6 is optionally substituted ar(lower)alkyl or optionally substituted heterocyclic-(lower)alkyl,R.sup.7 is lower alkyl or lower alkylthio(lower)alkyl,R.sup.8 is carboxy or protected carboxy,A is lower alkylene,Z is a group of the formula: ##STR2## wherein R.sup.1 is hydrogen, lower alkyl, common amino-protective group or optionally substituted ar(lower)alkyl,R.sup.2 is hydrogen, lower alkyl, optionally substituted ar(lower)alkyl, optionally substituted heterocyclic-(lower)alkyl, optionally substituted cyclo(lower)alkyl(lower)alkyl, common amino-protective group, amino(or protected amino)(lower)alkyl, optionally substituted heterocyclic-carbonyl or cyclo(lower)alkyl, andR.sup.3 is optionally substituted heterocyclic(lower)alkyl, andm is an integer of 0 to 2,or pharmaceutically acceptable salts thereof, useful as endothelin antagonist.
摘要:
The present invention relates to a novel fatty acid derivative of the following formula: ##STR1## wherein R.sup.1 is acyl group, etc.;R.sup.2 is acyl(lower)alkyl;R.sup.3 is lower alkyl, etc.;R.sup.4 is hydrogen, etc.; andX is --O--, etc;and a pharmaceutically acceptable salt thereof, which is useful as a medicament; the processes for the preparation of said fatty acid derivative or a salt thereof; a pharmaceutical composition comprising said fatty acid derivative or a pharmaceutically acceptable salt thereof; etc.