Gly-Gly-Ala-OH

Gly-Gly-His-OH

Leu-Leu-Leu-OH

Lysinoalanine2HCl (diastereomeric mixture: LL + LD)

Ophthalmic acid

Substance P (9-11)

(R)-3-Isopropylamino-1,2-propanediol

Cinnamoyl-(trans)-L-phenylalanine

Cyclo(-L-Phe-L-Ser)

环(L-苯丙氨酰-L-丝氨酰)

Benzyl-L-norleucine methyl ester hydrochloride

D-2-Cyclohexylglycine trifluoroacetate

(R)-α-氨基环己基乙酸

Acetyl-3-cyano-DL-phenylalanine

Boc-L-norvaline N-hydroxysuccinimide ester

Benzoyl-L-norleucine

trans-L-4-Hydroxyproline 4-nitroanilide hydrochloride