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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1051671Generated: October 31, 2026

Formaldehyde → (2S)-Methyl 5-cyclobutoxy-6-(1-(3-methoxy-1-methylpiperidin-4-yl)-1H-pyrazol-4-yl)-2-methyl-3,4-dihydroquinoline-1(2H)-carboxylate

https://huagongshe.com/reaction/1051671

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant(2S)-methyl 6-(1-(1-(tert-butoxycarbonyl)-3-methoxypiperidin-4-yl)-1H-pyrazol-4-yl)-5-cyclobutoxy-2-methyl-3,4-dihydroquinoline-1(2H)-carboxylateHCID 118075809—
Product(2S)-Methyl 5-cyclobutoxy-6-(1-(3-methoxy-1-methylpiperidin-4-yl)-1H-pyrazol-4-yl)-2-methyl-3,4-dihydroquinoline-1(2H)-carboxylateHCID 118076157—

Reaction Steps

(2S)-Methyl 5-cyclobutoxy-6-(1-(3-methoxy-1-methylpiperidin-4-yl)-1H-pyrazol-4-yl)-2-methyl-3,4-dihydroquinoline-1(2H)-carboxylate was synthesized from (2S)-methyl 6-(1-(1-(tert-butoxycarbonyl)-3-methoxypiperidin-4-yl)-1H-pyrazol-4-yl)-5-cyclobutoxy-2-methyl-3,4-dihydroquinoline-1(2H)-carboxylate and formaldehyde according to the procedure outlined above for Example 40. 1H NMR (300 MHz, CD3OD) δ ppm 1.19 (d, J=6.00 Hz, 3H), 1.20-1.50 (m, 2H), 1.55-1.85 (m, 1H), 2.01-2.22 (m, 4H), 2.22-2.68 (m, 4H), 2.88-3.08 (m, 5H), 3.10-3.22 (m, 2H), 3.50-3.60 (m, 1H), 3.80 (s, 3H), 3.81-4.01 (m, 1H), 4.05-4.25 (m, 1H), 4.30-4.45 (m, 1H), 4.48-4.70 (m, 1H), 7.20-7.40 (m, 2H), 7.85-8.10 (m, 2H). MS (ESI, pos. ion) m/z 469 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09388161B2
Source datasetuspto-grants-2016_07
ORD IDord-2df43102ca754667bc8ef1c472482df2
Source noteuspto-grants-2016_07