N-1-Trimethylsilyl derivatives of five different suitably protected parent ergot (clavine) alkaloids (agroclavine 1a, elymoclavine 2a, lysergol 3a, lysergene 4a, and 9,10-dihydrolysergol 5a) were prepared in 47-94% yields by refluxing the (protected) parent compounds with N-methyl-N-(trimethylsilyl)trifluoroacetamide in acetonitrile under nitrogen atmosphere.
五种不同的适当保护的母麦角生物碱(农业麦角碱1a,艾利莫麦角碱2a,利塞尔醇3a,利塞尔基因4a和9,10-二氢利塞尔醇5a)的N-1-三甲基硅基衍生物以47-94%的产率通过在氮气氛下用乙腈回流(受保护的)母化合物与N-甲基-N-(三甲基硅基)三氟乙酰胺制备。