5-(Benzyloxy)-2-methylbenzoic acid → 2-(1-{[5-(Benzyloxy)-2-methylphenyl]carbonyl}piperidin-4-yl)-5-(3,4-dimethoxyphenyl)-4,4-diethyl-2,4-dihydro-3H-pyrazol-3-one

참여 물질

반응 단계

The title compound is prepared analogously as described for GP2-WU2 using 5-(3,4-dimethoxyphenyl)-4,4-diethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one (compound B7) and 5-(benzyloxy)-2-methylbenzoic acid (compound F1) as starting compounds. The crude product is purified by chromatography (amino phase silica gel and DCM) and by a second chromatography (silica gel and cyclohexane/EA=1:1) to yield the title compound.

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