Potassium Hydroxide → N-[4-(4-Hydroxy-3-isopropyl-phenoxy)-3,5-dimethyl-phenyl]-malonamic acid

Participants

Reaction Steps

To a solution of N-[4-(4-hydroxy-3-isopropyl-phenoxy)-3,5-dimethyl-phenyl]-malonamic acid methyl ester (29 mg, 0.08 mmol) in a mixture of MeOH (1 mL) and H2O (1 mL) was added 3 N KOH (0.9 mmol, 0.3 mL). After stirring at RT for 4 h, H2O (10 mL) was added. The solution was washed with EtOAc (2×10 mL) and acidified with 1 N HCl. The aqueous solution was extracted with EtOAc (3×10 mL). The combined organic extracts were washed with brine, dried and concentrated to give the title compound of Step E and Example 1 (20 mg) as a white solid. MS (APCl−) Calc.: 357.1. Found: 356.1 (M−1).

Provenance & Evidence