Hydrochloric Acid → Alectinib Hydrochloride

Participants

Reaction Conditions

Reaction Steps

9-Ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile was dissolved in a mixture of 10 v/w of methyl ethyl ketone, 4 v/w of water, and 3 v/w of acetic acid at 60° C. To the dissolved solution, 1 v/w of hydrochloric acid (2 N) was added dropwise. After stirring at 60° C. for 30 minutes, 25 v/w of ethanol was added dropwise. The precipitated solid was filtered and dried to give 9-ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile monohydrochloride salt. 9-Ethyl-6,6-dimethyl-8-(4-morpholin-4-yl-piperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile monohydrochloride salt obtained was pulverized by using a jet mill.

Provenance & Evidence