Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914164Generated: October 26, 2026

1-methyl-1H-indole-4-sulfonyl chloride → 5-(3,4-Dimethoxyphenyl)-4,4-dimethyl-2-{1-[(1-methyl-1H-indol-4-yl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/1914164

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-methyl-1H-indole-4-sulfonyl chlorideHCID 18525782—
Reactant5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616406—
Product5-(3,4-Dimethoxyphenyl)-4,4-dimethyl-2-{1-[(1-methyl-1H-indol-4-yl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-oneHCID 67364380—

Reaction Steps

The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one (compound B1) and 1-methyl-1H-indole-4-sulfonyl chloride as starting compounds. The crude product is purified by crystallization from EA and diethyl ether to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609848B2
Source datasetuspto-grants-2013_12
ORD IDord-e8e3db4b558d4e2fbb3af7b190932a27
Source noteuspto-grants-2013_12