Water → HCID 22678035, compound

Participants

Reaction Steps

To a solution of 4-{5-[5-(4-methoxybenzenesulfonyl)-2,4-dioxo-thiazolidin-5-yl]pent-1-ynyl}-3-methylbenzoic acid methyl ester (Example 160)(0.29 g, 0.536 mmol) in THF (30 ml plus sufficient methanol to dissolve the substrate) was added lithium hydroxide (0.75 ml of 1.0M in water), and this solution was stirred at room temperature for 3 days. Dilution with water and acidification gave a solid which was crystallized from hexane-ethyl acetate to give the title compound as a light yellow solid mp 182-184° C. THEORY: C, 56.66, H, 4.34, N, 2.87. FOUND: C, 56.39, H, 4.60, N, 2.80.

Provenance & Evidence