Sodium Hydroxide → (2E)-3-(2-{[1-(4-chlorobenzoyl)-3-pyrrolidinyl]amino}-1,3-thiazol-4-yl)acrylic acid

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Reaction Conditions

Reaction Steps

The mixture of ethyl (2E)-3-(2-{[1-(4-chlorobenzoyl)-3-pyrrolidinyl]amino}-1,3-thiazol-4-yl)acrylate (0.9 g) and 1N-NaOH (4.4 mL) in MeOH (14 mL) was stirred at 50° C. for 3 hours and the mixture was evaporated in vacuo. To the residue was added a solution of AcOEt, THF and water, and the mixture was adjusted to pH 4 with 1N-HCl. The separated organic layer was washed with water, dried over magnesium sulfate and evaporated in vacuo to give (2E)-3-(2-{[1-(4-chlorobenzoyl)-3-pyrrolidinyl]amino}-1,3-thiazol-4-yl)acrylic acid (0.64 g).

Provenance & Evidence