Ethyl valerate → US10023592, Example 350

Beteiligte Stoffe

Reaktionsschritte

Examples 351-356 in Table 19 were prepared in a similar multi-step manner as Example 300, step 1 wherein either ethyl pentanoate was converted to 4-chloro-2-methylsulfonyl-5-propylpyrimidine or ethyl hexanoate was converted to 5-butyl-4-chloro-2-methylsulfonylpyrimidine which were then each reacted with a) 3-methoxy-1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one (described in Example 146, step 3), b) the title compound of Example 98, step 1, or c) 3-chloro-1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one (described in Example 134) in a manner similar to Example 152, step 5 to give the title compound.

Herkunft & Nachweise