作者:Matthieu Giraud、Jean-Louis Morgat、Florine Cavelier、Jean Martinez
DOI:10.1002/jlcr.477
日期:2001.6
The α,β-dehydro precursor of the delta sleep-inducing peptide (DSIP) for tritiation was prepared prior to tritiation using a 3+6 fragment coupling strategy on a solid support. The first fragment, α,β-dehydrotripeptide, was prepared in solution in five steps in 79% overall yield while the second fragment was obtained by a step by step peptide synthesis on a Wang resin using an Fmoc strategy. The α,β-dehydrotripeptide was coupled to the fragment linked to the resin, followed by a deprotection/cleavage step to yield the α,β-dehydro-DSIP, 7. Catalytic reduction of unsaturated DSIP using tritium gas and palladium oxide as catalyst gave [3H]DSIP having a specific activity of 1.184 TBq/mmol(32 Ci/mmol). Copyright © 2001 John Wiley & Sons, Ltd.
δ诱导睡眠肽(DSIP)的α、β-脱氢前体在三重化之前是在固体支持物上采用 3+6 片段偶联策略制备的。第一个片段--α,β-脱氢三肽是在溶液中分五步制备的,总收率为 79%;第二个片段是在王氏树脂上采用 Fmoc 策略分步合成肽段得到的。使用氚气和氧化钯作为催化剂对不饱和 DSIP 进行催化还原,得到了比活度为 1.184 TBq/mmol(32 Ci/mmol)的 [3H]DSIP。Copyright © 2001 John Wiley & Sons, Ltd. All Rights Reserved.