Heterocycles p. 2163 - 2172 (1990)
Update date:2022-07-29
Topics:
Singh, Baldev
Lesher, George Y.
The aldol condensation product (4) of 4-acetylpyridine (2) and diethyl mesoxalate (3) was converted to pyridazinecarboxylic acid hydrazide (6). Curtius reaction of 6 gave aminopyridazinone (7). The condensation of (4-pyridinyl)glyoxal (17) with aminomalonamide (9) yielded pyrazinecarboxamide (18) which was transformed to aminopyrazinone (19) by the Hofmann reaction. Curtius reaction of l,2,4-triazinone-5-carboxylic acid (21b) gave aminotriazinone (22). Demethylation of methoxypyrimidine (29) prepared from methyl 2-methoxyformylacetate (25) and isonicotinamidine (26) gave pyrimidinol (30).
View MoreTianjin Boron PharmaTech Co.,Ltd.(expird)
Contact:86-022-59845187
Address:B9-401, Tianda Science Park,No.80,4th Avenue,TEDA,Tianjin, China
Contact:+86-571-28186845
Address:Room 1224,Eastcom Mansion,398 Wensan Road,Hangzhou,310013 China
Shijiazhuang City Xiehe Pharmaceutical Co., Ltd
Contact:+86-311-80817929
Address:Shangzhuang,Shijiazhuang,China
Jinan Trio PharmaTech Co., Ltd
Contact:86-531-88811783；+(0)13153010282
Address:2766 Yingxiu Road, Jinan High-Tech Zone, China
WUXI KINGHAN BIO-MEDICAL&CHEMICAL INC.
Contact:13861062998
Address:Room 1316,No.1619 Huishan Avenue,Wuxi,China
Doi:10.1016/j.tet.2011.07.047
(2011)Doi:10.1021/jo00012a021
(1991)Doi:10.1016/j.poly.2017.02.008
(2017)Doi:10.1016/j.tetlet.2011.08.007
(2011)Doi:10.1016/j.bmc.2011.07.033
(2011)Doi:10.1021/jo2012384
(2011)
