Efficient method for the preparation of (S)-5-hydroxynorvaline
摘要:
(S)-5-Hydroxynorvaline 4 has been prepared from L-glutamic acid 1 by simultaneous protection of the cx-amino and a-carboxyl groups, and selective reduction of the resulting boroxazolidone 2. This method is rapid and highly reproducible, and gives very pure (S)-5-hydroxynorvaline after simple anion-exchange purification. It improves existing methods by providing a purer product in higher yields. (C) 2000 Elsevier Science Ltd. All rights reserved.
Efficient method for the preparation of (S)-5-hydroxynorvaline
摘要:
(S)-5-Hydroxynorvaline 4 has been prepared from L-glutamic acid 1 by simultaneous protection of the cx-amino and a-carboxyl groups, and selective reduction of the resulting boroxazolidone 2. This method is rapid and highly reproducible, and gives very pure (S)-5-hydroxynorvaline after simple anion-exchange purification. It improves existing methods by providing a purer product in higher yields. (C) 2000 Elsevier Science Ltd. All rights reserved.