1. Nonnatural amino acid 3 (4 thiazolyl) D, L alanine hydrochloride and its four intermediates were synthesized.
合成了非天然氨基酸3（4噻唑基）D，L丙氨酸盐酸盐及其四个中间体。
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2. Nonnatural amino acid 3 (4 thiazolyl) D, L alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR, NMR, elementary analysis and melting point.
3. Nonnatural amino acid 3 (4 thiazolyl) D, L alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR, NMR, elementary analysis and melting point.
