Hydrochloric Acid → HCID 18355134, compound

Participants

Reaction Steps

The solution of 4-[(2-ethoxycarbonylindol-4-yl)-carbonyl]amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (100 mg) in a mixture of 1 N aqueous sodium hydroxide solution (0.43 ml) and ethanol (4.0 ml) was stirred at ambient temperature for 5.5 hours. The resulting solution was neutralized with 1 N hydrochloric acid and methanol was removed in vacuo. The residue was diluted with water and the aqueous layer was extracted with chloroform. Drying, filtering and removal of solvents afforded 4-[(2-carboxyindol-4-yl)carbonyl]amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (70 mg) as a yellow amorphous.

Provenance & Evidence