4-Chloro-7-methoxy-quinazoline → 1,2,3,4-Tetrahydro-3-[1-(7-methoxy-4-quinazolinyl)-4-piperidinyl]-1,6-dimethyl-2,4-dioxoquinazoline

Participants

Reaction Steps

The procedure similar to that described in Example 57 was repeated, except that 354.0 g (1.0 mmol) of 1,2,3,4-tetrahydro-1,6-dimethyl-2,4-dioxo-3-(4-piperidinyl)quinazoline hydrobromide (Compound v) obtained in Example 41 was used and 4-chloro-7-methoxyquinazoline was used in place of 4-chloro-6,7-dimethoxyquinazoline. As a result, 96.2 mg (yield: 22%) of Compound 85 was obtained as white crystals.

Provenance & Evidence