13-cis-Acitretin → Acitretin

Participants

Reaction Steps

Crude acetretin (10 g) and butylated hydroxyanisole (0.5 g) were dissolved in tetrahydrofuran (350 ml) at room temperature. The resultant solution was filtered and washed with tetrahydrofuran. The combined filtrate was concentrated under vacuum at 30–35° C. Acetone (100 ml) was added to the residue and stirred for 10 minutes at room temperature. The crystalline product so obtained was filtered, washed with acetone and dried at 25–30° C. under vacuum to obtain pure acitretin (8.2 g, assay 99.4% by HPLC).

Provenance & Evidence