1-(Thiazol-2-yl)piperazine → 5-chloro-3-(2-methoxyphenyl)-3-{2-oxo-2-[4-(1,3-thiazol-2-yl)piperazin-1-yl]ethyl}-1,3-dihydro-2H-indol-2-one

Participants

Reaction Steps

With 800 mg of [5-chloro-3-(2-methoxyphenyl)-2-oxo-2,3-dihydro-1H-indol-3-yl]acetic acid, which is the compound described in Preparation 1.1 of the brochure Publication No. WO03/008407, and 449 mg of 1-(1,3-thiazol-2-yl)piperazine as starting materials, reaction manipulation and post-treatment were carried out by a similar method to Step 45-1, and the obtained residue was crystallized from EtOAc and n-hexane to obtain 976 mg of the title compound (colorless crystal).

Provenance & Evidence