... Compound I (1.94 g, 0.01 mole), acetone (10 ml), and methyl iodide (2 ml, 0.03 mole) were added to a solution of ... Compounds XVb-e were obtained similarly to XVa. ... L. Ya. Yanovskaya, Current Theoretical Basis of Organic Chemistry [in Russian], Khimiya, Moscow (1978), p. 215 ...