Fumaric Acid → AZD-8055 fumarate

Participants

Reaction Conditions

Reaction Steps

(5-{2,4-Bis[(3S)-3-methylmorpholin-4-yl]pyrido[2,3-d]pyrimidin-7-yl}-2-methoxyphenyl)methanol prepared by the alternate method (10.00 g, 20.6 mmoles), fumaric Acid (2.63 g, 22.7 mmoles), water (84 ml) and methylated spirit industrial 74 O.P. (16.0 ml) were charged to a 250 ml reactor and heated to reflux (92° C.). The hot solution was filtered to remove extraneous matter. The filter was washed with a mixture of water (17 ml) and methylated spirit industrial 74 O.P. (3 ml) and heated to 60° C. Seed crystals of Formula 5a Fumarate are added to the filtrates to initiate crystallisation. The resulting suspension is held at 60° C. for 2 hours to establish crystallisation and the growth of suitably sized crystals. The desired product precipitated out on further cooling of the suspension. The product was isolated, washed with methylated spirit industrial 74 O.P. and dried to yield 10.12 g of (5-{2,4-Bis[(3S)-3-methylmorpholin-4-yl]pyrido[2,3-d]pyrimidin-7-yl}-2-methoxyphenyl)methanol Fumarate as a yellow solid.

Provenance & Evidence