申请人:Sandoz, Inc.
公开号:US03962240A1
公开(公告)日:1976-06-08
5,5,7,7-tetramethyl-3-substituted or unsubstituted-phenylfuro[3,4-e]-as-triazines, e.g., 5,7-dihydro-5,5,7,7-tetramethyl-3-(m-nitrophenyl)furo[3,4-e]-as-triazine, are prepared by reacting a 2,2,5,5-tetramethyl-3,4(2H,5H)furandione with substituted or unsubstituted benzimidic acid hydrazide under an inert atmosphere in the presence of an inert organic solvent and are useful as sleep inducers and minor tranquilizers.
5,5,7,7-四甲基-3-取代或未取代苯基呋喃[3,4-e]-嘧啶类化合物,例如5,7-二氢-5,5,7,7-四甲基-3-(m-硝基苯基)呋喃[3,4-e]-嘧啶,是通过在惰性有机溶剂存在下,在惰性气氛下将2,2,5,5-四甲基-3,4(2H,5H)呋喃二酮与取代或未取代苯并咪唑酸肼反应制备的,并且可用作催眠剂和轻度安定剂。