Glutathione-diethyl ester (reduced)

Gly-Gly-Gly-Gly-OH

Pro-Trp-OH

Pro-Gly-OH

Ophthalmic acid

b-(4-Methylbenzyl)mercapto-b,b-cyclopenta-methylene-propionic acid

甲苯磺酰基-L-氨基联苯氯甲基, Tosyl-L-Phenylalanine chloromethylketone

1-O-十六烷基外消旋甘油, 1-O-Hexadecyl-rac-glycerol

Cyclo(-Asp-Gly)

Cyclo(-Gly-L-Glu)

Cyclo(L-Trp-L-Trp)