Total synthesis of bovine pancreatic ribonuclease A. Part 2. Synthesis of the protected hexatriacontapeptide ester (positions 89–124)
作者:Nobutaka Fujii、Haruaki Yajima
DOI:10.1039/p19810000797
日期:——
Commencing with the protected C-terminal pentadecapeptide of bovine pancreatic RNase,Z(OMe)-(RNase 110–124)-OBzl, chain elongation was accomplished to form the hexatriacontapeptide, Z(OMe)-(RNase 89–124)-OBzl, by six successive azide condensations of the peptide fragments, Z(OMe)-Val-Ala-NHNH2(4), Z(OMe)-Ile-Ile-NHNH2(5), Z(OMe)-Asn-Lys(Z)-His-NHNH2(6), Z(OMe)-Lys(Z)-Thr-Thr-Gln-Ala-NHNH2(7), Z(OM
从牛胰RNase,Z(OMe)-(RNase 110-124)-OBzl的受保护的C端五肽开始,链延长形成了六三碳肽,Z(OMe)-(RNase 89-124)-OBzl,通过肽片段的六个连续叠氮化物缩合,Z(OMe)-Val-Ala-NHNH 2(4),Z(OMe)-Ile-Ile-NHNH 2(5),Z(OMe)-Asn-Lys(Z )-His-NHNH 2(6),Z(OMe)-Lys(Z)-Thr-Thr-Gln-Ala-NHNH 2(7),Z(OMe)-Tyr-Pro-Asn-Cys(MBzl)- Ala-Tyr-NHNH 2(8)和Z(OMe)-Ser-Ser-Lys(Z)-NHNH 2(9)。