Tetrahedron p. 3995 - 4006 (1993)
Update date:2022-08-04
Topics:
Lienard
Quirion
Husson
The condensation of 2-cyano-6-phenyloxazolopiperidine synthon (-)-5 with piperonal, gave after reduction, the optically pure pivotal amino-alcohol 8. Two strategies were developed to prepare the epimeric azapodophyllotoxin analogues 2 and 3 via Grignard reactions on an iminium ion generated from the common intermediate 8. The first strategy was based on an intramolecular reaction while the second involved a stereocontrolled addition reaction on iminium ion 20.
View MoreShanghai Bojing Chemical Co., Ltd.
Contact:021-37122233
Address:6F Buildiing 11,No.388,Baifu Road,District Fengxian.Shanghai, China.
Contact:+36(21)2523420
Address:Head office: 1102 Budapest, SZENT LASZLO TER 24/B. 1/1., HUNGARY / CHINA
Quhua Zhongxing Refrigeration Technology Co.,Ltd.
Contact:+86-5708886618
Address:318 Bulding 2, No.866 Quhua Rd.,Kecheng District
Nanjing Ruizhi Industry & Technologh Co.,Ltd.
Contact:+86-25-86808110
Address:441-4-A5,NO.12 Longzang Avenue,Yuhuatai District,210039,Nanjing
Changsha Yonta Industry Co., Ltd.
Contact:+ 86-731-8535 2228
Address:Rm.1717, North Bldg., No.368, East 2nd Ring Road(2nd Section)
Doi:10.1021/jm981094e
(1999)Doi:10.1016/S0957-4166(99)00183-4
(1999)Doi:10.1021/ja992077x
(1999)Doi:10.1021/jo00832a004
(1970)Doi:10.1021/acs.orglett.1c00260
(2021)Doi:10.1055/s-1999-2743
(1999)