(s,s)-2-[1-Carboxy-2-(3',5'-dichloro-biphenyl-4-yl)-ethylamino]-4-methyl-pentanoic acid 、 (s,s)-2-[1-Carboxy-2-(4'-methyl-biphenyl-4-yl)-ethylamino]-4-methyl-pentanoic acid 、 (s,s)-[1-Carboxy-2-(4'-fluoro-biphenyl-4-yl)-ethylamino]-4-methyl-pentanoic acid 、 (s,s)-2-[1-Carboxy-2-(4'-trifluoromethyl-biphenyl-4-yl)-ethylamino]-4-methyl-pentanoic acid 、 (s,s)-2-[2-(4-Benzo[1,3]dioxol-2-yl-phenyl)-1-carboxy-ethylamino]-4-methyl-pentanoic acid 、
2-[2-(4-Benzo[b]thiophen-3-yl-phenyl)-1-carboxy-ethylamino]-4-methyl-pentanoic acid 、 (s,s)-2-[1-Carboxy-2-(3-thiophen-3-yl-phenyl)-ethylamino]-4-methyl-pentanoic acid 、 、 (s,s)-2-[1-Carboxy-2-(4'-methyl-biphenyl-3-yl)-ethylamino]-4-methyl-pentanoic acid 、 (s,s)-2-[1-Carboxy-2-(3-naphthalen-1-yl-phenyl)-ethylamino]-4-methyl-pentanoic acid 、 (s,s)-2-[1-Carboxy-2-(3',5'-dimethoxy-biphenyl-3-yl)-ethylamino]-4-methyl-pentanoic acid 以
NH4OAc 、
乙腈 、
acetonitrile-water 、
水 为溶剂,
生成
L-酪氨酸乙酯