反应详情

1-(1,4-Dioxa-spiro[4.5]dec-8-yl)-1-(4-methyl-cyclohexyl)-3-(5-methyl-thiazol-2-yl)-urea was prepared in an similar manner to example 2 according to general procedures (A) and (B) using 1,4-dioxaspiro[4.5]decan-8-one, 4-methylcyclohexylamine and 2-amino-5-methylthiazole. The acetale was then hydrolysed in the following way: