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US 6,333,418 B1Granted
Cyclisation process
AssigneeAstraZeneca AB
InventorsJulian Simon Parratt, Stephen John Clifford Taylor
Life of this patent
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Abstract
There is provided a process for the cyclisation of 4-amino-2-halobutyric acid to azetidine-2-carboxylic acid wherein more than 20 g of 4-amino-2-halobutyric acid is cyclised per liter of reaction mixture.
Claims9
A process for the cyclisation of 4-amino-2-halobutyric acid to azetidine-2-carboxylic acid wherein more than 30 g of 4-amino-2-halobutyric acid is cyclised per liter of reaction mixture.
Dependencies are inferred from the claim text.