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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1630523Generated: November 3, 2026

Ammonium Chloride → HCID 68283901, compound

https://huagongshe.com/reaction/1630523

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 60197896HCID 60197896—
CatalystZincHCID 23994—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 68283901HCID 682839010.4%

Reaction Conditions

Temperature80 °C

Reaction Steps

5-(2-Azido-2-(pyridin-3-yl)propyl)-2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (Crude) (500 mg, 1.4 mmol) was dissolved in EtOH (4 mL) and water (1 mL). Ammonium chloride (243 mg, 4.5 mmol) followed by zinc dust (293 mg, 4.5 mmol) were added to the reaction mixture and heated at 80° C. for 1 h. The reaction mixture was concentrated to dryness, basified with aqueous ammonia solution and extracted with EtOAc (150 mL). The organic layer was dried over sodium sulfate, evaporated in vacuo and purified by reverse phase HPLC to afford 2 mg of 1-(2,8-dimethyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)-2-(pyridin-3-yl)propan-2-amine. 1H NMR (CD3OD, freebase): δ (ppm): 8.39 s (1H), 8.3 d (1H), 7.72 d (1H), 7.32 t(1H), 7.11 (1H), 6.91 d (1H), 6.8 d (1H), 4.18 dd (2H), 3.61 dd (2H), 2.7 m (2H), 2.46 s (3H), 2.35 s (3H),2.26 m (2H). Chiral HPLC provided enantiomers 149a and 149b.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791132B2
Source datasetuspto-grants-2014_07
ORD IDord-11b1991ada8a4a179ed470e25b3cc3b1
Source noteuspto-grants-2014_07