N-{[(4-甲氧基苄基)氧基]羰基}甘氨酸

2-(ethylsulfanylcarbothioylamino)acetic acid

2-(benzylsulfanylcarbothioylamino)acetic acid

({[(4-甲基苯基)磺酰基]氨基}乙酰基)氨基]乙酸

N-[[1-(3,5-二甲氧基l苯基)-1-甲基乙氧基]羰基]-甘氨酸