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US 6,673,921 B2Granted
Chemical process
AssigneeSmithKline Beecham Corporation
InventorsDavid Colclough, Anne Hodgson
Life of this patent
Estimating the term…
Abstract
A process for the preparation of the compound (I) or an acid addition salt thereof which comprises reacting a compound of formula (II), wherein R is an optionally substituted benzyl group under concomitant reduction and hydrogenolysis conditions, followed, if required, by isolation of the compound as an acid addition salt thereof.
Claims6
A process for the preparation of the compound of formula (I)
- or an acid addition salt thereof which comprises reacting a compound of formula (II)
- wherein R is benzyl or a substituted benzyl group under concomitant reduction and hydrogenolysis conditions, followed, if required, by isolation of the compound as an acid addition salt thereof.
Dependencies are inferred from the claim text.