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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2381437Generated: November 2, 2026

3-cyclopentyl-2-[4-(2-methanesulfonyl-phenoxy)-6-oxo-6H-pyridazin-1-yl]-propionic acid → HCID 57919327, compound

https://huagongshe.com/reaction/2381437

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-cyclopentyl-2-[4-(2-methanesulfonyl-phenoxy)-6-oxo-6H-pyridazin-1-yl]-propionic acidHCID 57919150—
Reactant1-(3-amino-1H-pyrazol-1-yl)-2-methylpropan-2-olHCID 59344938—
ProductHCID 57919327HCID 5791932754%

Reaction Steps

Using the method described in Example 17, 3-cyclopentyl-2-[4-(2-methanesulfonyl-phenoxy)-6-oxo-6H-pyridazin-1-yl]-propionic acid (Intermediate 48) and 1-(3-amino-pyrazol-1-yl)-2-methyl-propan-2-ol (Intermediate 1) afforded 3-cyclopentyl-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-2-[4-(2-methanesulfonyl-phenoxy)-6-oxo-6H-pyridazin-1-yl]-propionamide as a white solid (0.74 g, 54%); ES+-HRMS m/e calcd for C26H33N5O6S [M+Na+] 566.2044 found 566.2045. 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.05 (s, 3H), 1.06 (s, 3H), 1.10 (m, 1H), 1.28-1.76 (m, 8H), 1.92 (m, 1H), 2.28 (m, 1H), 3.36 (s, 3H), 3.89 (s, 2H), 4.67 (s, 1H), 5.48 (dd, J=4.4, J=10.9 Hz, 1H), 5.96 (d, J=2.8 Hz, 1H), 6.41 (d, J=2.2 Hz, 1H), 7.53 (d, J=2.2 Hz, 1H), 7.56-7.66 (m, 2H), 7.87 (m, 1H), 8.00 (dd, Jo=8.0 Hz, Jm=1.6 Hz, 1H), 8.21 (d, J=2.8 Hz, 1H), 10.83 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08258134B2
Source datasetuspto-grants-2012_09
ORD IDord-f260b479d5cc48c5bc069fc4d9df7fac
Source noteuspto-grants-2012_09