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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 729629Generated: October 29, 2026

Tetrahydrofuran → 1-{1-[1-(1-Methyl-cyclopropanecarbonyl)-piperidin-4-yloxy] isoquinolin-4-yl}-3-[5-(1-methyl-cyclopropyl)-2-p-tolyl-2H-pyrazol-3-yl]-urea

https://huagongshe.com/reaction/729629

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
Reactant[4-(4-Amino-isoquinolin-1-yloxy)-piperidin-1-yl]-(1-methyl-cyclopropyl)-methanoneHCID 57832814—
Reactant[5-(1-methyl-cyclopropyl)-2-p-tolyl-2H-pyrazol-3-yl]-carbamic acid 2,2,2-trichloroethyl esterHCID 57832815—
Product1-{1-[1-(1-Methyl-cyclopropanecarbonyl)-piperidin-4-yloxy] isoquinolin-4-yl}-3-[5-(1-methyl-cyclopropyl)-2-p-tolyl-2H-pyrazol-3-yl]-ureaHCID 1606146968%

Reaction Conditions

Temperature46.5 °C

Reaction Steps

Add [4-(4-Amino-isoquinolin-1-yloxy)-piperidin-1-yl]-(1-methyl-cyclopropyl)-methanone (Preparation 23, 331.00 g, 1.02 moles), THF (3.97 L, 48.79 moles), [5-(1-Methyl-cyclopropyl)-2-p-tolyl-2H-pyrazol-3-yl]-carbamic acid 2,2,2-trichloro-ethyl ester (Preparation 18, 410.00 g, 1.02 moles), and DIPE (159.00 g, 1.22 moles) to a 12 L Morton flask equipped with overhead stirrer, thermocouple, and reflux condenser. Reflux the mixture for 22 hours. Cool reaction to <50° C. and treat with carbon (Darco G-60; 33.00 g, 2.75 moles). Stir the slurry for 30 minutes at 43-50° C., then filter over micro fiber paper and Hyflo Super Cel® (27.00 g). Seed the filtrate and allow to cool at ambient temperature during precipitation. Pack the resulting slurry in ice and stir overnight. Filter the solids, wash with THF (300.00 mL, 3.69 moles), and dry under reduced pressure at 40° C. Subject residue to silica gel chromatography eluting with 1:3 acetone/DCM, then 30% acetone in DCM to obtain 401 g (68%) 1-{1-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yloxy]-isoquinolin-4-yl}-3-[5-(1-methyl-cyclopropyl)-2-p-tolyl-2H-pyrazol-3-yl]-urea as a white solid 1H NMR (300 MHz, DMSO-d6): δ 0.56 (t, J=6.0 Hz, 2H), 0.73 (t, J=6.0 Hz, 2H), 0.84 (t, J=6.0 Hz, 2H), 0.92 (t, J=6.0 Hz, 2H), 1.27 (s, 3H), 1.41 (s, 3H), 1.73-1.81 (m, 2H), 1.99-2.08 (m, 2H), 2.41 (s, 3H), 3.52-3.65 (m, 2H), 3.83-3.96 (m, 2H), 5.47-5.58 (m, 1H), 6.22 (s, 1H), 7.37 (d, J=8.1 Hz, 2H), 7.44 (d, J=8.1 Hz, 2H), 7.65-7.71 (m, 1H), 7.78-7.83 (m, 2H), 8.12 (s, 1H), 8.27 (d, J=8.4 Hz, 1H), 8.58 (s, 1H), 8.69 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582638B2
Source datasetuspto-grants-2009_09
ORD IDord-9bcd13d9e2cf479c915527aaf6df0203
Source noteuspto-grants-2009_09