6-Methoxypyridine-3-carbaldehyde → 1-isopropyl-6-{(3S,4S)-1-[(6-methoxypyridin-3-yl)methyl]-4-methylpyrrolidin-3-yl}1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one

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Reaction Steps

Following the procedure for the preparation of 1-cyclopentyl-6-[(3,4-trans)-4-methyl-1-(pyridin-3-ylmethyl)pyrrolidin-3-yl]-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one but substituting 1-isopropyl-6-[(3S,4S)-4-methylpyrrolidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one and 6-methoxynicotinaldehyde provided the title compound. 400 MHz 1H NMR (CDCl3) δ 8.02 (s, 2H), 7.72 (m, 1H), 6.77 (d, J=8.3 Hz, 1H), 3.90 (s, 3H), 3.73-3.53 (m, 2H), 3.39-3.33 (m, 1H), 3.30 (m, 1H), 2.8 (m, 1H), 2.55-2.40 (m, 1H), 1.9 (m, 1H), 1.57-1.53 (m, 2H), 1.52-1.47 (m, 6H), 1.19 (d, J=6.6 Hz, 3H). MS: (M+H m/z=383.2).

Provenance & Evidence