Water → sodium;(E)-7-[3-(4-fluorophenyl)-1-propan-2-ylindol-2-yl]-3,5-dihydroxyhept-6-enoate

Participants

Reaction Steps

A 100 ml round bottom flask was loaded with fluvastatin methyl ester (5 g, 11.7 mmole), water (45 ml), THF (12.5 ml) and NaOH (0.48 g). The solution was stirred for 1.5 h then extracted with ethyl acetate (20 ml) and filtered. The aqueous phase was distilled and acetonitrile (100 ml) was added and the mixture was stirred at room temperature over night. The product was isolated by filtration under nitrogen flow, washed with acetonitrile (15 ml) and dried at 50° C. in a vacuum oven for 24 h to obtain 4.16 g (82%) of fluvastatin sodium crystal Form LXXIII.

Provenance & Evidence