Suppression of Ethyl Migration in the Synthesis of 2,5-Anhydro-1-Amino-1,4-Dideoxy-3-Thio-D-Threo-Pentitol Hydrochloride, A Key Intermediate for Oral the 1β-Methylcarbapenems
摘要:
A reproducible synthesis of 2,5-anhydro-1-amino-1,4-dideoxy-3-thio-D-threo-pentitol hydrochloride (2b) via the Staudinger reaction with triethyl phosphite was developed. An unexpected ethyl migration from an oxygen to the nitrogen of iminophosphorane 7 was observed.
Suppression of Ethyl Migration in the Synthesis of 2,5-Anhydro-1-Amino-1,4-Dideoxy-3-Thio-D-Threo-Pentitol Hydrochloride, A Key Intermediate for Oral the 1β-Methylcarbapenems
摘要:
A reproducible synthesis of 2,5-anhydro-1-amino-1,4-dideoxy-3-thio-D-threo-pentitol hydrochloride (2b) via the Staudinger reaction with triethyl phosphite was developed. An unexpected ethyl migration from an oxygen to the nitrogen of iminophosphorane 7 was observed.
Suppression of Ethyl Migration in the Synthesis of 2,5-Anhydro-1-Amino-1,4-Dideoxy-3-Thio-D-Threo-Pentitol Hydrochloride, A Key Intermediate for Oral the 1β-Methylcarbapenems
作者:Panayota Bitha、Timothy W. Strohmeyer、Zhong Li、Yang-I Lin
DOI:10.1080/00397910008087144
日期:2000.4
A reproducible synthesis of 2,5-anhydro-1-amino-1,4-dideoxy-3-thio-D-threo-pentitol hydrochloride (2b) via the Staudinger reaction with triethyl phosphite was developed. An unexpected ethyl migration from an oxygen to the nitrogen of iminophosphorane 7 was observed.