trimethylsilyl 2-(3-methylbut-2-enoyl-trimethylsilylamino)acetate;trimethylsilyl 2-(3-methylbut-2-enoyl-trimethylsilyl-amino)acetate;2-[(3-methyl-1-oxobut-2-enyl)-trimethylsilylamino]acetic acid trimethylsilyl ester;2-(3-methylbut-2-enoyl-trimethylsilyl-amino)acetic acid trimethylsilyl ester;trimethylsilyl 2-(3-methylbut-2-enoyl-trimethylsilyl-amino)ethanoate;.beta.-Methyl crotonyl glycine bis(trimethylsilyl)-;Glycine, N-(3-methyl-1-oxo-2-butenyl)-N-(trimethylsilyl)-, trimethylsilyl ester
trimethylsilyl 2-(3-methylbut-2-enoyl-trimethylsilylamino)acetate