申请人:Abbott Laboratories
公开号:US04025630A1
公开(公告)日:1977-05-24
Improved anesthesia methods comprising pretreating a patient to be anesthetized with a benzopyran of formula I ##STR1## wherein, in the C ring, X is NR.sub.1, S, CH.sub.2 or ##STR2## R.sub.1 is hydrogen, loweralkyl, loweralkenyl, loweralkynyl, loweralkanoyl, cycloalkyloweralkyl, cycloalkylloweralkanoyl, cycloalkyl, haloloweralkyl, haloloweralkenyl, phenylloweralkyl, phenyloweralkenyl or phenyloweralkylnyl; m is an integer from 0 to 3, n is an integer from 0 to 3 and n + m = 2 or 3; or the C ring is quinuclidine ring ##STR3## R.sub.2 is loweralkyl; R.sub.3 is hydrogen or ##STR4## wherein Y is a straight or branched chain alkylene group having from one to eight carbon atoms, a is an integer from 1 to 4, b is an integer from 1 to 4, Z is CH.sub.2, O, S or NR.sub.6, R.sub.6 being hydrogen or loweralkyl, with the limitation that when Z is O, S or NR.sub.5, the sum of a and b is 3 or 4, and R.sub.5 is hydrogen or loweralkyl; R.sub.4 is C.sub.1 -C.sub.20 straight or branched chain alkyl, cycloalkyl, or ##STR5## wherein Y is a straight or branched chain alkylene group having from one to ten carbon atoms, and each R.sub.7, R.sub.8 and R.sub.9 are the same or different members of the group consisting of hydrogen, halo, trifluoromethyl or loweralkyl; and the pharmaceutically acceptable salts thereof, with the limitation that when X is ##STR6## m = 2 and n = 2, R.sub.3 cannot be hydrogen.
改进的麻醉方法包括使用化学式I的苯并吡喃预处理待麻醉的患者
其中,在C环中,X是NR.sub.1,S,CH.sub.2或##STR2## R.sub.1是氢,低烷基,低烯基,低炔基,低酰基,环烷基低烷基,环烷基低酰基,环烷基,卤代低烷基,卤代低烯基,苯基低烷基,苯基低烯基或苯基低烷基; m是0到3的整数,n是0到3的整数,n + m = 2或3;或C环是喹啉环##STR3## R.sub.2是低烷基; R.sub.3是氢或##STR4##其中Y是具有1至8个碳原子的直链或支链烷基基团,a是1到4的整数,b是1到4的整数,Z是CH.sub.2,O,S或NR.sub.6,R.sub.6为氢或低烷基,限制是当Z为O,S或NR.sub.5时,a和b的总和为3或4,R.sub.5为氢或低烷基; R.sub.4是C.sub.1-C.sub.20直链或支链烷基,环烷基,或##STR5##其中Y是具有1到10个碳原子的直链或支链烷基基团,每个R.sub.7,R.sub.8和R.sub.9是氢,卤素,三氟甲基或低烷基的相同或不同成员;及其药用盐,限制是当X为##STR6##时,m = 2,n = 2,R.sub.3不能是氢。