申请人:Sharps Associates
公开号:US03972880A1
公开(公告)日:1976-08-03
Novel thienobenzopyran and thiopyranobenzopyran esters represented by the formula ##SPC1## Wherein n is 0 to 3 and m is 0 to 3 and m + n = 2 or 3, R.sub.1 is lower alkyl, R.sub.2 is alkyl or cycloalkyl-lower alkyl, R.sub.4 is hydrogen or lower alkyl, R.sub.5 is hydrogen or lower alkyl, and R.sub.3 is ##EQU1## wherein Y is a straight or branched chain C.sub.1 to C.sub.8 alkylene, R.sub.6 is hydrogen or a lower alkyl, a is an integer from 1 to 4, b is an integer from 1 to 4, X is CH.sub.2, O, S or NR.sub.7 wherein R.sub.7 is hydrogen or lower alkyl, with the limitation that when X is O, S or NR.sub.7, a and b each must be 2; and the acid addition salts thereof.
本发明涉及一种由以下公式表示的新型噻吩并苯并噻吩酯:##SPC1##
其中n为0至3,m为0至3且m + n = 2或3,R.sub.1为低碳基,R.sub.2为烷基或环烷基-低碳基,R.sub.4为氢或低碳基,R.sub.5为氢或低碳基,且R.sub.3为##EQU1##
其中Y为直链或支链的C.sub.1至C.sub.8烷基,R.sub.6为氢或低碳基,a为1至4的整数,b为1至4的整数,X为CH.sub.2,O,S或NR.sub.7,其中R.sub.7为氢或低碳基,但当X为O,S或NR.sub.7时,a和b必须各为2;以及其酸加成盐。