Archiv der Pharmazie p. 269 - 270 (1995)
Update date:2022-08-04
Topics:
Lemcke
Messinger
Cyclocondensation of 3-ethoxy-2-sulfonyl-2-propen-1-ones 1 with benzamidine (2a) guanidine (2b) and S-benzyl-iso-thiourea (2c) leads to the 2,4-disubstituted 5-sulfonyl-pyrimidines 3a-c. 1 reacts with hydrazines 4a,b or hydroxylamine yielding the 4-sulfonyl-pyrazoles 5a-c and 4-sulfonyl-isoxazole 6, respectively.
View MoreContact:86-25-51817806
Address:No. 216, middle longpan road, jincheng tower, floor 21-22, nanjing ,china
Yangzhou Zhongbao Pharmaceutical Co.,Ltd
Contact:+86-514-88290838
Address:Jiangsu Baoying county economic develpment zone in baoying avenue91
Fujian Huitian Biological Pharmacy Co., Ltd.
Contact:0086-598-8300831; 8339920
Address:No.46,Taijiang Road,Sanming City,Fujian,China
Heliosense Biotechnologies, Inc.
website:https://www.heliosense.com/
Contact:+86-592-5667290
Address:Xiamen Torch Hi-tech Zone Venture Weiye Building S506
Jewim Pharmaceutical (Shandong) Co., Ltd
Contact:+8615621883869
Address:山东省泰安市高新技术产业开发区配天门大街西首
Doi:10.1021/om800597f
(2008)Doi:10.1039/b808374f
(2008)Doi:10.1021/ja972664n
(1998)Doi:10.1016/S0022-1139(00)81934-X
(1986)Doi:10.1246/bcsj.59.3535
(1986)Doi:10.1016/S0040-4039(00)84850-9
(1986)
