Tetrahedron p. 5401 - 5412 (1990)
Update date:2022-08-04
Topics:
Bull, James R.
Steer, Lynne M.
Dillen, Jan L. M.
17β-Acetoxy-3-methoxyestra-1,3,5(10)-triene-14,17α-dicarbaldehyde (1) undergoes base-mediated intramolecular condensation to give a mixture of the (141R)- and (141S)-141,20-hemiacetals of (20R)-14-formyl-20-hydroxy-3-methoxy-19-nor-17α-pregna-1,3,5(10)-triene-21,17-carbolactone (2).The synthesis of derived 19-nor-17-spirolactones is described, and it is shown that 14-functionality participates in unusual intramolecular rearrangements.
View MoreContact:0510-85393305
Address:1619 Huishan Avenue, Huishan District, Wuxi,
A.M FOOD CHEMICAL CO., LIMITED
Contact:86-531-87100375
Address:20Floor，Bblock，1Building，pharma-valley，Jinan，China
Weifang Dongxing Chitosan Factory
website:http://dxchitosan.lookchem.com/
Contact:13475651157
Address:Weifang city ,shandong province
Zibo Kunran Enterprises Co. LTD
website:http://www.kunranchem.com
Contact:0086 533 5200669
Address:No. 96 Jinjing Avenue, Zibo, Shandong, China
Zibo Like Chemical Group Co,.Ltd
Contact:+86-18653335121
Address:No. 818, Linzi Avenue, Linzi District, Zibo City, Shandong Province
Doi:10.1007/s00044-016-1626-7
(2016)Doi:10.1016/j.tetlet.2021.153204
(2021)Doi:10.1021/ic200706e
(2011)Doi:10.1016/j.ejmech.2011.02.069
(2011)Doi:10.1080/00397911.2010.494817
(2011)Doi:10.1021/om200323c
(2011)
