Chemistry of Natural Compounds p. 168 - 173 (1984)
Update date:2022-08-05
Topics:
Odinokova, L. E.
Oshitok, G. I.
Denisenko, V. A.
Anufriev, V. F.
Tolkach, A. M.
Uvarova, N. I.
The glycosylation of betulin and its acetates by α-acetobromoglucose in toluene in the presence of cadmium carbonate is considered.It has been shown that the reaction is accompanied by Wagner-Meerwein rearrangements of the initial alcohols in rings A and E.This leads to the formation - in addition to acetates of betulin glycosides - of derivatives of allobetulin - A-nor-Δ3(5)-allobetulin and A-nor-Δ3(5)-betulin - as was shown by 1H and 13C NMR spectroscopy.
View MoreXi'an Costrong Pharmaceutical Co., Ltd.
Contact:029- 68576496
Address:Room 2004,Shuibao Building,No.190,South Erhuan Rd, Yanta District,Xi'an,Shaan Xi,China
website:http://www.uvchemkeys.com
Contact:0086-021-58785816
Address:RM2607 Building No.1 Guosheng, Lane 388, Zhongjiang Road, Putuo District, Shanghai 200062 China
Shanghai AoBo Bio-Pharmaceutical Technology Co., Ltd.
Contact:+86-21-51320130-801, 816
Address:Room 601, No. 1011, Halei Road, Zhangjiang High-Tech Park, Pudong, Shanghai
Taizhou KEDE Chemical.Co.,Ltd.
Contact:86-576-84613060
Address:Jiangkou Chemical Zoon
Ningbo Tide Imp. & Exp. Co., Ltd.
Contact:+86-571-8993 7933; +86-571-8993 6453
Address:7/F Anno Domini Building, Tower South, 8 Qiu Shi Road,Hangzhou,China.
Doi:10.1007/BF00776774
()Doi:10.1007/BF00487303
(1989)Doi:10.1002/jlcr.794
(2004)Doi:10.1021/jm00293a018
(1971)Doi:10.1002/anie.202002364
(2020)Doi:10.1016/j.carbpol.2010.10.050
(2011)
