Tetrahedron Letters p. 4891 - 4894 (1996)
Update date:2022-08-05
Topics:
Neel, David A.
Holmes, Richard E.
Paschal, Jonathan W.
The synthesis of bicyclic pyrazolidinone 2 is described. Traditional methods for penem and cephem ring cyclization were found to be unsuccessful and new methodology using a Curtius rearrangement was utilized. The 3- enamine 11 was hydrolysed to the desired β-keto ester 2b without substantial loss of the t-BOC protecting group.
View MoreCerametek Materials（ShenZhen）Co., Ltd.
Contact:+86-755-2324.2554
Address:A3-#9, YongChuan Street, Suite 501
Jiangxi Dongxu Chemical Science & Technology Co.,Ltd
Contact:+86-791-86899381
Address:Nanchang, Jiangxi, China
Contact:+86-571-87010026
Address:202, Zhenhua Road,
Buffett (China) Holding Co.,Ltd
Contact:4006570891
Address:
website:http://www.arromax.com
Contact:+86-0512-62959601 skype:aimmezhang
Address:Suite 401, Bldg A3, 218 Xinghu St.Suzhou Industrial Park 215123, P.R. China
Doi:10.1007/BF00471248
()Doi:10.1021/acs.orglett.8b03016
(2018)Doi:10.1021/ma047635t
(2005)Doi:10.1016/S0040-4020(99)01108-4
(2000)Doi:10.1016/0040-4020(77)80130-0
(1977)Doi:10.1016/j.bioorg.2021.104828
(2021)
