摘要 |
(A) Cpds. (I) R'-R4 = H, halogen, or alkyl, R2 and R3 may also be alkyl-O, or (tog.) -O-CH2-O-. R5 = alkyl opt. subst. by halogen, or aryl opt. subst. by one or more alkyl or alkyl O-gps. R6 = H, alkyl, or aryl (B) Acid addn. salts of I. (C) Quaternary ammonium salts of I. Depressants and spasmolytics. |