Helvetica Chimica Acta p. 2219 - 2226 (1981)
Update date:2022-07-30
Topics:
Rueedi, Peter
Eugster, Conrad Hans
The hitherto unknown diterpenoid 14-hydroxytaxodione (10a) has been prepared by oxidation of 6β-hydroxyroyleanone.Its solutions exhibit a dynamic structural behaviour (UV./VIS. and NMR.) and lead to an equilibrium mixture of the 11,14- and the 6,12-dioxo forms.By methylation and acetylation the 6,12-dioxo form can be isolated.Chloroform solutions of 14-hydroxytaxodione slowly set up a mixture of coleon V (2a), coleon U (3) and dimeric products (later established as grandidone C, grandidone D and 7-epigrandidone D).Therefore, coleon V (2a) owing to its strong intramolecular H-bond is more stable than 7,14-dihydroxytaxodione (2b).
View MoreHaitong Chemical Industrial Co.,Ltd.
website:https://www.haitonglongwin.com/
Contact:+86-022-66221018
Address:18-701, No.99, The 4th Street, TEDA,
HANGZHOU FOREWIN PHARMA CO., LTD
Contact:+86-571-89053961
Address:hangzhou
Suzhou BEC Fine Chemicals Co., Ltd.
website:http://www.bek.com.cn
Contact:0512-68095917 18913193865
Address:6, Jin Shan Road, Suzhou New District, 215011 China Suzhou Nations Pharmaceutical Innovation Center Inside
Nanjing Qirui Material Co., Ltd.
Contact:+86-25-52320053
Address:F4-5, #17 Building, Chuang Yi Yuan, No.6 Guanghua East Street, Nanjing, 210007 P.R.China
Beijing Zhongshuo Pharmaceutical T & D Co.,Ltd
Contact:0086-10-64430626
Address:ea No 16, HEPINGLI,DONGCHENG DISTRICT,BEIJING,P.R.CHINA.
Doi:10.1002/chem.201204344
(2013)Doi:10.1016/S0031-9422(00)80339-8
(1984)Doi:10.1002/adsc.201701281
(2018)Doi:10.1016/j.jorganchem.2004.05.050
(2004)Doi:10.1016/S0040-4020(01)96281-7
(1968)Doi:10.1080/00397919208021321
(1992)
