Dimethyl Sulfoxide → HCID 131727715, compound

Participants

Reaction Conditions

Reaction Steps

With warming to about 75° C., 4-(3′-chloro-4′-fluoroanilino)-7-methoxy-6-(3-morpholinopropoxy)quinazoline (204 kg) was dissolved in a mixture of ethyl acetate (1021 liters) and dimethyl sulphoxide (181 liters) containing diatomaceous earth filter aid (5 kg). The resultant mixture was filtered and ethyl acetate (78 liters) was used to wash the filter aid solid. The filtrate and washings were combined and cooled initially to about 10° C. The mixture was then heated to about 40° C. for 1 hour. The warm mixture was cooled to 0° C. at a rate of about 10° C. per hour. The resultant solid was collected by filtration. There was thus obtained Form 3 ZD1839 DMSO solvate as shown by XRPD and DSC analysis.

Provenance & Evidence