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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 751378Generated: October 31, 2026

Hydrochloric Acid → HCID 86596812, compound

https://huagongshe.com/reaction/751378

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-PyrrolidineethanamineHCID 1344—
Reactant1-(4-tert-butylphenyl)-2-chloro-1H-indole-3-carboxaldehydeHCID 86035920—
SolventMethanolHCID 887—
ProductHCID 86596812HCID 8659681220%

Reaction Steps

1-(4-tert-Butylphenyl)-2-chloro-1H-indole-3-carboxaldehyde is reacted with 1-(2-aminoethyl)pyrrolidine as described in Step 2 of Example 29 to obtain oil. The oil is dissolved in small amount of methanol and treated with 1M ethereal hydrochloric acid. The solvents are removed and the residue is triturated with ether to yield 1-(4-tert-butylphenyl)-2-(2-pyrrolidin-1-yl-ethylamino)-1H-indole-3-carboxaldehyde hydrochloride (20% yield) as a light beige solid. ESI/MS 390 (M+H); RT 3.42 min. NMR 10.68 (1H, s); 7.95 (1H, d, J=9 Hz); 7.67 (2H, d, J=9 Hz); 7.47 (2H, d, J=9 Hz); 7.10 (2H, m); 6.63 (1H, d, J=9 Hz); 3.54 (2H, m); 3.40 (2H, m); 3.21 (2H, m); 2.83 (2H, m); 1.91 (4H, m); 1.35 (9H, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07405300B2
Source datasetuspto-grants-2008_07
ORD IDord-c1597d408ac048a38313561210c59752
Source noteuspto-grants-2008_07