Process for the preparation of 2-alkyl-3,5,6,7- or 8-substituted

Details Process for the preparation of 2-alkyl-3,5,6,7- or 8-substituted Process for the preparation of 2-alkyl-3,5,6,7- or 8-substituted

1993-07-19

1994-08-30

Shah, Mukund J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544287, C07D23990, C07D23991

Patent

active

053429443

ABSTRACT:
A novel process for producing 2-alkyl-3,5,6,7 or 8-substituted-4 (3H)-quinazolinones of the formula: ##STR1## where R, R.sup.1 and R.sup.2 are defined in the specification by reacting the appropriately N-acyl substituted aminobenzoic acids with ethylchloroformate followed by further reaction with ammonia or a primary amine.

REFERENCES:
patent: 5238942 (1993-08-01), Chakravarty et al.
patent: 5240928 (1993-08-01), Allen et al.

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