Microwave-mediated solventless synthesis of new derivatives of marine alkaloid Leucettamine B
摘要:
New access to N-alkyl derivatives of the marine alkaloid Leucettamine B are described using two three-step convergent routes. For the formation of the 2-amino imidazolone ring, the key steps involve solvent-free condensations under microwaves and guanylation reactions with non-sterically hindered primary amines. (C) 2002 Elsevier Science Ltd. All rights reserved.
The marine natural product leucettamine B 2 has been prepared in good yield via two different routes, starting with glycine or with 3-methyl thiohydantoin, involving simple aldol condensation, and finally transamination of the thiohydantoin derivative. (C) 1999 Elsevier Science Ltd. All rights reserved.
Microwave-mediated solventless synthesis of new derivatives of marine alkaloid Leucettamine B
作者:Jean-René Chérouvrier、François Carreaux、Jean Pierre Bazureau
DOI:10.1016/s0040-4039(02)00575-0
日期:2002.5
New access to N-alkyl derivatives of the marine alkaloid Leucettamine B are described using two three-step convergent routes. For the formation of the 2-amino imidazolone ring, the key steps involve solvent-free condensations under microwaves and guanylation reactions with non-sterically hindered primary amines. (C) 2002 Elsevier Science Ltd. All rights reserved.