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The synthesis of steroid/nonsteroid fused pyrimidines is described by the base mediated reaction of steroidal/nonsteroidal α,β-unsaturated ketones with amidine derivatives in good yields under microwave irradiation.
A facile strategy for the synthesis of steroidal A- and D-ring fused pyrimidines has been accomplished in high yields via a one-pot reaction of steroidal ketones, aromatic aldehydes and amidine derivatives in presence of potassium tert-butoxide in refluxing ethanol. The generality of the reaction was also extended to non-steroidal ketones.
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