adj.違背自然的；強迫的

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. 合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸鹽酸鹽以及三個中間體，其結(jié)構(gòu)分別通過紅外光譜、核磁共振、元素分析、熔點等測試手段得到確證。

nonnatural mark of word segmentation 非自然分詞標記

Synthesis of Nonnatural Amino Acid 3-(4-Thiazolyl)-D,L-Alanine Hydrochloride 非天然氨基酸3-(4-噻唑基)-D,L-丙氨酸鹽酸鹽的合成

Cell Adhesion Inhibition by RGD Peptides Linked with a Photoisomerizable Nonnatural Amino Acid 連接光異構(gòu)化非天然氨基酸的RGD肽抑制細胞的附著

Title： Synthesis of Nonnatural Amino Acid 3-(4-Thiazolyl)-D,L-Alanine Hydrochloride 關鍵詞：合成；非天然氨基酸；3-(4噻唑基)-D，L-丙氨酸鹽酸鹽