2-[[2-[[4-amino-2-[[2-[[2-[2-[[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]propanoylamino]-3-methylbutanoyl]amino]-3-methylbutanoyl]amino]-4-oxobutanoyl]amino]-3-carboxypropanoyl]amino]-4-methylpentanoic acid

Boc-D-苯丙氨酸

N-叔丁氧羰基-1,2-乙二胺

Boc-甘氨酸叔-丁基酯

BOC-甘氨酸-N-羟基琥柏酰亚胺酯