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 MoreJiaxing Trustworthy Import And Export Co.,Ltd
Contact:+86-573-82030555
Address:Room 1202, Unit B, Charming plaza,No.1558 East Zhongshan Road , Jiaxing City, Zhejiang Province, China.
Jiaozuo Zhongwen Trading Coporation Limited
Contact:--
Address:East Renmin Road
website:http://www.amadischem.com
Contact:86-571-89925085
Address:Watts Cosine.No.166.Xiangmao Road.
Neworld Chemical Co., Ltd Shanghai(expird)
Contact:+86-21-62202658
Address:11F, Blvd 2, No. 1969 PuXing Rd, Shanghai
Angelisun(Chongqing) Pharmaceutical Co., LTD.
Contact:+86-23-68030926-816
Address:D1-7 Tech & Entrepreneurs Park, Kecheng Road, Erlang Hi-Tech Areas, Chongqing, 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)
