Synthesis and the Skraup Reaction of Amino-5H-benzothiopyrano[2,3-b]pyridin-5-ones
摘要:
The new amino derivatives of 5 H-[1]benzothiopyrano[2,3-b]pyridin-5-one were synthesized. The Skraup reaction of these amino-5 H-[1]benzothiopyrano [2, 3-b]pyridin-5-ones was conducted in the presence of glycerol, fuming sulfuric acid, nitrobenzene, iron (II) sulfate and boric acid. 6-Amino-, 7-amino-, 8-amino- and 9-Amino-5 H-[1]benzothiopyrano [2,3-b] pyridin-5-ones gave 12 H-pyrido[3', 2':5,6]thiopyrano [2,3-h]quinolin-12-one, 12 H-pyrido [3',2':5,6]thiopyrano [3,2-f]quinolin-12-one, 7 H-pyrido [3',2':5,6]thiopyrano[2, 3-f]quinolin-7-one and 7 H-pyrido [3',2':5,6]thiopyrano[3,2-h]quinolin-7-one, respectively.
Base-regulated tunable synthesis of pyridobenzoxazepinones and pyridobenzoxazines
作者:Chaoren Shen、Xiao-Feng Wu
DOI:10.1039/c5cy00798d
日期:——
A base-regulated one-pot protocol for the tunable synthesis of pyridobenzoxazepinones and pyridobenzoxazines has been developed. Pyridobenzoxazepinones and pyridobenzoxazines were produced in good yields selectively.
Pyrido [2,3-b][1,5]benzoxazepin (and thiazepin)-5(6H)-ones and -thiones and their use in the prevention or treatment of HIV infection
申请人:BOEHRINGER INGELHEIM PHARMACEUTICALS INC.
公开号:EP0415303B1
公开(公告)日:1995-12-13
US5550122A
申请人:——
公开号:US5550122A
公开(公告)日:1996-08-27
Synthesis and the Skraup Reaction of Amino-5H-benzothiopyrano[2,3-b]pyridin-5-ones
作者:Hidetoshi Fujiwara
DOI:10.3987/com-96-7647
日期:——
The new amino derivatives of 5 H-[1]benzothiopyrano[2,3-b]pyridin-5-one were synthesized. The Skraup reaction of these amino-5 H-[1]benzothiopyrano [2, 3-b]pyridin-5-ones was conducted in the presence of glycerol, fuming sulfuric acid, nitrobenzene, iron (II) sulfate and boric acid. 6-Amino-, 7-amino-, 8-amino- and 9-Amino-5 H-[1]benzothiopyrano [2,3-b] pyridin-5-ones gave 12 H-pyrido[3', 2':5,6]thiopyrano [2,3-h]quinolin-12-one, 12 H-pyrido [3',2':5,6]thiopyrano [3,2-f]quinolin-12-one, 7 H-pyrido [3',2':5,6]thiopyrano[2, 3-f]quinolin-7-one and 7 H-pyrido [3',2':5,6]thiopyrano[3,2-h]quinolin-7-one, respectively.