Tetrahedron Letters p. 5631 - 5634 (1983)
Update date:2022-08-16
Topics:
Morita, Masaya
Kojima, Yasuhiro
Kato, Natsuki
Miwa, Kanji
Tanaka, Isao
et al.
The reverse of absolute stereochemistries of clerodin and caryoptin means that the correct chirality conflict with the absolute stereochemistries based on Cotton effects.Molecular mechanics and X-ray studies confirmed that the B ring of the 6-keto derivatives retained the boat form as the stable conformer.Furthermore, the steric factors causing the conformational changes were proved by derivation to the strain-free derivatives.The conformation of the B ring in the derivatives changed to the chair form which is confirmed by the X-ray and CD.
View More
Baicao Pharmaceutical Co., Ltd.
website:http://www.jxbaicao.com
Contact:+86-796-8113329
Address:It (country) economic and technological development zone of the jinggang mountains
Contact:86-25-58619180
Address:Nanjing High-Tech Zone 10 Xinghuo Road Pukou District Nanjing, Jiangsu 210061 The People's Republic of China
Contact:+86-0311-84455288-844
Address:Mayu Industrial Park, Jinzhou, Hebei, China.
Hangzhou Dingyan Chem Co., Ltd
website:http://www.dingyanchem.com
Contact:86-571-87157530-8007
Address:RM.1118,NO.1 Building, Baiyun Tower,Jianggan Area, Hangzhou city, China,310004
Guilin Zhenda Bio-Tech Co., Ltd.
Contact:86-773-3568977
Address:-Yangtang shangshui industry park, Lingui county,
Doi:10.1016/S0040-4039(00)92777-1
(1980)Doi:10.1016/j.tet.2004.08.048
(2004)Doi:10.1016/j.tetlet.2014.01.088
(2014)Doi:10.1016/j.tetlet.2020.152222
(2020)Doi:10.1021/jo00135a017
(1982)Doi:10.1039/jr9440000503
(1944)
