A short and efficient synthesis of 1-deoxy-castanospermine and 1-deoxy-8a-epi-castanospermine
摘要:
A new route for the synthesis of 1-deoxy-castanospermine 2 and 1-deoxy-8a-epi-castanospermine 3 has been developed via a sequential triple reductive amination process of a suitably protected D-gluco-oct-5-ulo-1,8-dialdose, which was easily prepared by three carbon homologation of readily available alpha -D-xylo-pentodialdose using an appropriate Grignard reagent followed by oxidation. (C) 2001 Elsevier Science Ltd. All rights reserved.
The 5-Endo-trig Cyclization of D-Glucose Derived γ-Alkenylamines with Mercury (II) Salts: Synthesis of 1-Deoxycastanospermine and its 8a-epi-Analogue†
作者:D. Dhavale、S. Jachak
DOI:10.3390/10080893
日期:——
The intramolecular aminomercuration of γ-alkenylamines 1a, 1b and 4 was shown to afford the 5-endo-trig cyclized product exclusively in good yield. The utility of pyrrolidine derivatives thus obtained from D-glucose derived γ-alkenylamines 1a and 1b was demonstrated in the synthesis of 1-deoxycastanospermine (3a) and 1-deoxy-8a-epi-castanospermine (3b).
A short and efficient synthesis of 1-deoxy-castanospermine and 1-deoxy-8a-epi-castanospermine
作者:Nitin T Patil、Jayant N Tilekar、Dilip D Dhavale
DOI:10.1016/s0040-4039(00)02103-1
日期:2001.1
A new route for the synthesis of 1-deoxy-castanospermine 2 and 1-deoxy-8a-epi-castanospermine 3 has been developed via a sequential triple reductive amination process of a suitably protected D-gluco-oct-5-ulo-1,8-dialdose, which was easily prepared by three carbon homologation of readily available alpha -D-xylo-pentodialdose using an appropriate Grignard reagent followed by oxidation. (C) 2001 Elsevier Science Ltd. All rights reserved.