Chemical and Pharmaceutical Bulletin p. 2015 - 2019 (1996)
Update date:2022-09-26
Topics:
Qui, Ming-Hua
Nie, Rui-Lin
Nakamura, Norio
Kikuchi, Tohru
Two new steroidal alkaloids, paxillarines A (1) and B (2), were isolated from Pachysandra axillaris. Their structures were determined by means of spectrometric methods as 3α-N-methylbenzoylamino-4β-acetoxy-16β-hydroxy- 20α-dimethylamino-5α-pregnane and 3α-N-methylbenzoylamino-4β-acetoxy- 12β-hydroxy-20α-dimethyl-amino-5α-pregnane, respectively. Some of the expected characteristic 1H-NMR signals were not observed due to hindered rotation when the spectra were measured on a 400 MHz spectrometer, although all of the signals appeared clearly on a 90 MHz machine. The conformation of the ring A moiety of these alkaloids is discussed.
View MoreSuzhou Sinosun Imp.&Exp. Corporation
website:http://www.szsinosun.com
Contact:+86-512-63488895,63488616
Address:No.758 East Jiangling Road Wujiang Economic & Technological Developmenty Zone Jiangsu China
Contact:86-25-84683399
Address:605, Phoenix Herui Plaza, No.389, South Taiping Road, Nanjing, China 210002
shanghai jiuling chemical co.,ltd.
Contact:+86-21-50387295
Address:Zaozhuang Road, Pudong, Shanghai City. China
ShangHai Original Economy-Trade Develop Co.,Ltd.,
Contact:86-21-68552131
Address:shanghai
Liao Cheng All Win Chemicals Co.,LTD
Contact:86+0635-2991582
Address:Room 402,Unit 1,No.27 building.Zhong tong shi dai haoyuan,liaocheng city,Shan dong Province.China
Doi:10.1016/S0040-4039(00)74041-X
(1993)Doi:10.1021/ol015941a
(2001)Doi:10.1021/jm970477u
(1997)Doi:10.1021/om00137a038
(1986)Doi:10.1016/S0040-4020(01)87245-8
(1993)Doi:10.1002/hlca.19930760805
(1993)
