| 主权项 |
1. A compound of formula (I):
Xaa1-Xaa2-Xaa3-Xaa4-Xaa5-Xaa6-Xaa7-Xaa8-Xaa9-Xaa10-NH—(CH2)n—R (I) wherein Xaa1, Xaa2, Xaa3, Xaa5, Xaa7, Xaa8 and Xaa10 are independently selected from the group consisting of lysine, 3-hydroxylysine, 4-hydroxylysine, 5-hydroxylysine, 3,4-dihydroxylysine, 3,5-dihydroxylysine, 4,5-dihydroxylysine, ornithine, 3-hydroxyornithine, 4-hydroxyornithine, 3,4-dihydroxyornithine, 2,4-diaminobutanoic acid, 3-hydroxy-2,4-diaminobutanoic acid, arginine, histidine, serine, and threonine; Xaa4 is glycine, 3-aminopropanoic acid, or 4-aminobutanoic acid; Xaa6 is proline, 3-hydroxyproline, 4-hydroxyproline, aziridine-2-carboxylic acid, azetidine-2-carboxylic acid, pipecolic acid, 4-oxaproline, 3-thiaproline, 4-thiaproline, 3,4-dehydroproline, 4-aminoproline, 4-fluoroproline, α-methylproline, or α-allylproline; Xaa9 is arginine, 2,3-dehydroarginine, citrulline, 2,3-dehydrocitrulline, canavanine, or 2,3-dehydrocanavanine; n is 2, 3, 4, 5, 6, 7, 8, 9, or 10; and R is —OH, —NH2, or —COOH. |
