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US 4,736,029 AGranted
Process for preparing 2-amino-6-chloropurine
AssigneeBeecham Pharmaceuticals
InventorsMichael R. Harnden, Richard L. Jarvest
Life of this patent
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Abstract
A process for the preparation of the compound of formula (I): ##STR1## which process comprises reacting the compound of formula (II): ##STR2## with a chlorinating agent in the presence of a phase transfer catalyst containing chloride ions.
Claims8
A process for the preparation of the compound of formula (I):
- ##STR6## which process comprises reacting the compound of formula (II):
- ##STR7## with a chlorinating agent in the presence of a phase transfer catalyst containing chloride ions.
Dependencies are inferred from the claim text.