Studies on peptides. XCVII. Synthesis of porcine Glu8-vasoactive intestinal polypeptide (VIP).
作者:MASAHARU TAKEYAMA、KANAME KOYAMA、HARUAKI YAJIMA、MOTOYUKI MORIGA、MITSURU AONO、MOTONOBU MURAKAMI
DOI:10.1248/cpb.28.2265
日期:——
The synthesis of Glu8-vasoactive intestinal polypeptide (porcine VIP) is described. A 1 M solution of trifluoromethanesulfonic acid-thioanisole (1 : 1 equiv.) in TFA was found to cleave all the protecting groups employed, Z, Z (OMe), Bzl and Mts, suppressing the acid-catalyzed aminosuccinimide formation of the Asp residue (position 3) with the free carboxyl group. The activity of Glu8-VIP was 1/7-1/8 of that of synthetic porcine VIP.
描述了谷氨酰胺8-血管活性肠多肽(猪VIP)的合成。发现1 M的三氟甲磺酸-硫代苯甲醚(1:1当量)在TFA中的溶液可以裂解所有使用的保护基团Z、Z(OMe)、Bzl和Mts,抑制Asp残基(第3位)与游离羧基的酸催化氨基琥珀酰亚胺的形成。谷氨酰胺8-VIP的活性是合成猪VIP的1/7-1/8。