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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1257122Generated: November 3, 2026

Cesium carbonate → HCID 44612352, compound

https://huagongshe.com/reaction/1257122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantIsoquinolin-3-AmineHCID 311869—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
ReactantHCID 58285194HCID 58285194—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
ProductHCID 44612352HCID 44612352—

Reaction Steps

1-(2-Chloro-pyridin-4-ylmethyl)-4-(N-methylcarbamoyl)piperazine (1.0 equiv) (Preparation B-12) was mixed with 3-aminoisoquinoline (1.0 equiv), Pd2(dba)3 (0.1 equiv), xantphos (0.15 equiv), and Cs2CO3 (1.4 equiv) in toluene. The mixture was refluxed overnight, and EtOAc was added in to dilute the mixture. After filtration, the filtrate was concentrated and applied onto a silica gel column. The title compound was obtained as a yellow solid (63 mg, 28% yield): 1H NMR (CDCl3, 300 MHz) δ: 2.49 (t, J=4.4 Hz, 4H, PyridylCH2NCH2CH2), 2.83 (s, 6H, N(CH3)2), 3.29 (t, J=4.8 Hz, 4H, NCH2CO), 3.52 (s, 2H, pyridylCH2), 6.88-8.98 (m, 9H, isoquinolyl+pyridyl).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08461339B2
Source datasetuspto-grants-2013_06
ORD IDord-667e282e571e40b39683f0a3a6d34a70
Source noteuspto-grants-2013_06