[C:1]([C:4]1[N:5]=[C:6]([CH2:11][CH2:12][CH2:13][CH3:14])[NH:7][C:8]=1[C:9]#[N:10])(=[O:3])[CH3:2].[CH2:15]([Mg]Br)C>>[CH2:11]([C:6]1[NH:7][C:8]([C:9]#[N:10])=[C:4]([C:1](=[O:3])[CH2:2][CH3:15])[N:5]=1)[CH2:12][CH2:13][CH3:14]Following a procedure similar to that described in Preparation 24(i), but using ethylmagnesium bromide instead of methylmagnesium bromide, the title compound, melting at 84°-85° C, was obtained in a 51.9% yield.
Wird geladen…