New 5H-2,3-benzodiazepine derivatives of the formula ##STR1## wherein R is phenyl having a trifluoromethyl or halogen substituent, R.sup.1 is methyl, R.sup.2 is hydrogen, R.sup.3 is methoxy and R.sup.4 is methoxy, and the pharmaceutically acceptable acid addition salts thereof, are potent tranquilizers.
新的5H-2,3-苯二氮杂
环己酮衍
生物的
化学式为##STR1##,其中R是苯基,带有三
氟甲基或卤素取代基,R.sup.1是甲基,R.sup.2是氢,R.sup.3是甲氧基,R.sup.4是甲氧基,以及它们的药用可接受的酸盐,是有效的镇静剂。