(2S)-2-[[(5S,8R)-5-[[(2S,3R)-1-(2-氨基-3-羟基丙酰基)-3-羟基吡咯烷-2-羰基]氨基]-13,15-二羟基-16-甲基-2,6-二氧代3-氧杂-10-硫杂-7-氮杂双环[10.4.0]十六-1(16),12,14-三烯-8-羰基]氨基]丙酸

5-(RS)-(3-indolylmethyl)-4,5-dihydroisoxazole-3,5-dicarboxylic acid

DL-丙氨酸

DL-α-alanyl-DL-norvaline

α-amino-α-methylmalonic acid