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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 873927Generated: November 1, 2026

3-Hydrazinyl-2-methoxypyridine → 4-(4-chlorophenyl)-5-(4-methoxybenzyl)-1-(2-methoxypyridin-3-yl)-3-methyl-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one

https://huagongshe.com/reaction/873927

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Hydrazinyl-2-methoxypyridineHCID 44542550—
Reactant4-acetyl-5-(4-chlorophenyl)-3-hydroxy-1-[(4-methoxyphenyl)methyl]-2,5-dihydro-1H-pyrrol-2-oneHCID 117702896—
SolventEthyl acetate hexaneHCID 21226206—
Product4-(4-chlorophenyl)-5-(4-methoxybenzyl)-1-(2-methoxypyridin-3-yl)-3-methyl-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-oneHCID 117702770—

Reaction Steps

The title compound was prepared in analogy to the procedure described in Example 57 using 4-acetyl-5-(4-chlorophenyl)-3-hydroxy-1-(4-methoxybenzyl)-1H-pyrrol-2(5H)-one (Step 71.2) and 3-hydrazinyl-2-methoxypyridine (Step 71.1). tR: 5.79 min (HPLC 1); tR: 1.29 min (LC-MS 2); ESI-MS: 475 [M+H]+ (LC-MS 2); Rf=0.60 (hexane/EtOAc 1:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975417B2
Source datasetuspto-grants-2015_03
ORD IDord-08492a24f16d436fa24a1211189fc6b9
Source noteuspto-grants-2015_03