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US 6,297,382 B1Granted
Compound and process for producing β-adrenergic receptor agonist
AssigneePfizer Inc.
InventorRobert W. Scott
Life of this patent
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Abstract
A process is provided for preparing a compound of the formula: comprising deprotecting a compound of the formula
Claims2
A compound having the formula
- wherein R2 and R3 are independently C1-C3 alkyl or phenyl.
A compound having the formula
- wherein R1 is C1-C8 alkyl, and R2 and R3 are independently C1-C3 alkyl or phenyl.
Dependencies are inferred from the claim text.