Tetrahedron p. 81 - 87 (1986)
Update date:2022-08-05
Topics:
Garcia-Granados, A.
Molina, A.
Cabrera, E.
A new 4β,5α-epoxy-6β-acetoxy-trans-germacr-1(10)-ene has been isolated from Sideritis varoi subsp. cuatrecasasii.The product has been subjected to several biomimetic cyclizations which have rendered cis-(1β-H,5β-H)-guaianes.One of these guaianes presents the same structure as a product also present in an extract of this plant.Chemical structure of guaianes have been established by 1H-NMR, 13C-NMR, ORD experiences and chemical correlations.The stereospecificity of the cyclization is explained according to a conformation in which the 14 and 15 methyl groups are syn.
View MoreWEIFANG RICHEM INTERNATIONAL LTD
Contact:86-536-2222176
Address:weifang,shandong
HANGZHOU TOYOND BIOTECH CO., LTD
Contact:+86-571-86965177
Address:No. 189, Fengqi East Road, Hangzhou, China
website:http://www.cheminn.com/
Contact:86-531-67875205
Address:No.9-2,South of Shanda Road, Jinan ,China
Shanghai shibo Chemical Co., Ltd
Contact:+86-021-60753516
Address:688 Qiushi Road, Jinshan High-tech Park, Shanghai, China,201512
Tianjin Tensing Fine Chemical Research Develop Centre
Contact:86-022-23718576,13032267585
Address:2-2-201,13 Guiyuan road,Huayuan Industry district,Tianjin,china
Doi:10.1021/jo01095a606
(1958)Doi:10.1002/anie.201511975
(2016)Doi:10.1016/j.jorganchem.2007.04.013
(2007)Doi:10.1016/j.ejmech.2016.03.044
(2016)Doi:10.1021/ja710342q
(2008)Doi:10.1016/S0040-4020(01)96605-0
(1985)
