2-Methyl-2H-pyrazol-3-ylamine → 1-(1-methyl-1H-pyrazole-5-yl)-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine

Participants

Reaction Steps

By using N,N-bis(2-chloroethyl)-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-amine (660 mg, 2.0 mmol) synthesized in Reference Example 146 and 1-methyl-1H-pyrazole-5-amine (233 mg, 2.4 mmol), the reaction was carried out in the same manner as Example 117 to obtain 26 mg of the title compound as a colorless solid (yield 4%). Melting point was 126 to 128° C. (ethanol-water).

Provenance & Evidence