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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1711930Generated: October 30, 2026

Hydrochloric Acid → HCID 66967622, compound

https://huagongshe.com/reaction/1711930

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPropionitrileHCID 7854—
ReactantTri-o-tolylphosphineHCID 80271—
ReactantDiisopropylethylamineHCID 81531—
ReactantN-Methyl-N-[(1-methyl-2-indolyl)methyl]acrylamideHCID 20752825—
Reactant2-Amino-5-bromopyridine-3-carbonitrileHCID 24229199—
Catalystpalladium(II) acetateHCID 167845—
ProductHCID 66967622HCID 6696762246.9%

Reaction Conditions

Temperature100 °C

Reaction Steps

A propionitrile (15 mL) solution of 2-amino-5-bromo-nicotinonitrile (198 mg, 1 mmol), N-methyl-N-(1-methyl-1H-indol-2-ylmethyl)-acrylamide (457 mg, 2 mmol) and diisopropyl-ethylamine (523 μL, 3 mmol) was purged with Argon for 10 min. Pd(OAc)2 (23 mg, 0.1 mmol) and P(o-Tol)3 (61 mg, 0.2 mmol) was added and the Argon purge was repeated. The mixture was heated to 100° C. and stirred for 6 hr under Argon. Upon cooling, solvents were removed under vacuo and the residue was purified by Flash chromatography (silica, 2% MeOH in CH2Cl2). The purified free base was converted to its HCl salt by addition of HCl (1 mL, 1 mmol, IM in ether). The salt was washed with ether and dried to afford 162 mg (43%) of the title compound. 1H NMR (300 MHz, DMSO-d6) δ 8.50 (m, 2H), 7.55-6.95 (m, 4H), 6.40 and 6.17 (rotamers, 2s, 1H), 5.03 and 4.83 (rotamers, 2s, 2H), 3.71 and 3.67 (rotamers, 2s, 3H), 3.09 and 2.96 (rotamers, 2s, 3H). MS (ESI) m/e: 346.1662 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07790709B2
Source datasetuspto-grants-2010_09
ORD IDord-1bc807804a2e4c01ab8945f187af2884
Source noteuspto-grants-2010_09