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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1613624Generated: October 30, 2026

Indole-5-carbonitrile, 3-(2-aminoethyl)-, hydrochloride → N-t-Butoxycarbonyl-2-(5-cyano-1H-indol-3-yl)ethylamine

https://huagongshe.com/reaction/1613624

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIndole-5-carbonitrile, 3-(2-aminoethyl)-, hydrochlorideHCID 58925—
Reactant4-Cyanophenylhydrazine HydrochlorideHCID 16212962—
ReactantEthyl acetate hexaneHCID 21226206—
ProductN-t-Butoxycarbonyl-2-(5-cyano-1H-indol-3-yl)ethylamineHCID 1046917658%

Reaction Steps

The title compound was prepared in 58% yield from 3-(2-aminoethyl)-5-cyano-1H-indole hydrochloride using the conditions described for Intermediate 1 (Step 3); white solid; mp 132°-134° C. (hexane-ethyl acetate); δH (250 MHz, CDCl3) 8.42 (1H, br s, indole N--H), 7.93 (1H, s, Ar--H), 7.41 (2H, s, Ar--H), 7.12 (1H, d, J=2.2 Hz, Ar--H), 4.71 (1H, br s, --NH--), 3.44 (2H, q, J=6.9 Hz, --CH2NH--), 2.94 (2H, t, J=6.9 Hz, Ar--CH2 --), 1.45 (9H, s, t-Bu); m/z (CI) 286 (M+ +1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05194440
Source datasetuspto-grants-1993_03
ORD IDord-2f71d690067d4e7a96e02d81383bde61
Source noteuspto-grants-1993_03