Journal of the Chemical Society. Perkin transactions I p. 2717 - 2723 (1981)
Update date:2022-08-05
Topics:
Dantanarayana, Anura P.
Kumar, N. Savitri
Sultanbawa, M. Uvais S.
Balasubramaniam, Sinnathamby
Four new oxygenated lupanes isolated from the steam bark of Pleurostylia opposita (Wall) Alston (Celastraceae) have been shown to be lupa-5,20(29)-dien-3-one (2), 6β,20-dihydroxylupan-3-one (5), 3β,6β-dihydroxylup-20(29)-ene (6), and 6β,28-dihydroxylup-20(29)-en-3-one (8).The structures of these compounds were established on the basis of spectroscopic (1H n.m.r. and mass spectra) and chemical evidence.Deshielding of three methyl signals in the 1H n.m.r. spectra of 6β-hydroxylupane derivatives has been attributed to 1,3-diaxial interaction between the relevant methyl group and the 6β-hydroxy-group.
View Morezhenjiang runjing high purity chemical co ltd
Contact:+86-511-83361155
Address:No.8.haixi road,international chemical park
Contact:+86-21-61318535
Address:Building 29,No.2139 Xizha Road, Fengxian District, Shanghai
AUSHUN PHARMACEUTICAL TECHNOLOGY CO,.LTD
Contact:+86-25-86883560 15951806178
Address:14 Dayingbi, Zhujiang Rd. East, Nanjing, Jiangsu, China.
Jurong Huaheng Natural Biological Products Factory
website:http://www.risebiochem.com
Contact:+86-13921007726
Address:Chuncheng town,Jurong city,Jiangsu province,China
Contact:+86-371-86058576
Address:NO.32, Jingsan Road, Zhengzhou, China
Doi:10.1007/s10847-012-0196-7
(2013)Doi:10.1039/c39810000884
(1981)Doi:10.1016/S0040-4020(01)98970-7
(1981)Doi:10.1246/bcsj.54.3185
(1981)Doi:10.1021/jo0488006
(2004)Doi:10.1007/BF00763659
(1988)
