Chemistry of Natural Compounds p. 59 - 66 (1982)
Update date:2022-07-29
Topics:
Kamernitskii, A. V.
Levi, V. G.
Reshetova, I. G.
Bogdanov, V. S.
Pavlov, V. A.
Cherepanova, E. G.
The paper is devoted to the synthesis of 3,17α,20-trihydroxy-16β,23-epoxy-21,24-dinor-5αH-cholan-6-one and 3,5α,17α,20-tetrahydroxy-16β,23-epoxy-21,24-dinorcholan-6-one and derivatives of them.It has been shown that the reduction of 3,17α-dihydroxy-16β,23-epoxy-21,24-dinorchol-5-en-20-one with sodium tetrahydroborate and with diborane takes place stereospecifically with different spatial directivities: in the products of diborane reduction, ring E exists in the boat form, as has been shown by 1H and 13C NMR methods.The trans linkage of rings A/B in the modified steroids has been confirmed by their circular dichroism spectra.
View MoreHubei Danao Pharmaceutical Co.,Ltd.
website:http://www.danaopharm.com
Contact:+86-719-5251167
Address:Fandan Road,Danjiangkou,Hubei
Taizhou Sunny Chemical Co.,Ltd
Contact:+86-523-86920899 +86-13951172783
Address:No.11 Xingyuang road, Gaoyong Chemical Industry Park, Gaogang Jiangsu China
Jinan Jiaquan Chemical Co.,Ltd
Contact:+86-531-62318366
Address:Room 502 of Yidonghuayuan No.601 Huaxin Road Licheng District Jinan China
Tianjin Crest Pharmaceutical R&D Co., Ltd. （Tianjin Yao Technology Development Co., Ltd.）(expird)
Contact:+86-22-66211386
Address:Building B5-405, No, 80 4th Avenue, TEDA, Tianjin, China P.R. 300457
Contact:0833-5590788/5590338/5590055
Address:Victory in the town of Red Star Village,Mount Emei City,industrial concentration area storage processing logistics parkpark
Doi:10.1134/S1070428016120034
(2016)Doi:10.1016/S0008-6215(00)81074-5
(1982)Doi:10.1021/om049427v
(2005)Doi:10.1081/SCC-100103979
(2001)Doi:10.1002/adsc.200404209
(2005)Doi:10.1007/BF00798955
(1983)
