Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409065Generated: October 31, 2026

Hydrochloric Acid → HCID 89650393, compound

https://huagongshe.com/reaction/2409065

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 86689870HCID 86689870—
SolventMethanolHCID 887—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 89650393HCID 89650393137.4%

Reaction Conditions

Temperature40 °C

Reaction Steps

To (R)—N—((S)-1-(3-chloro-1H-pyrrolo[3,2-b]pyridin-5-yl)ethyl)-2-methylpropane-2-sulfinamide (1.08 g, 3.23 mmol) in anhydrous MeOH (10 mL) was added HCl (4.0 mol/L) in dioxane (14 mL). The reaction mixture was stirred at 40° C. under N2 for 16 h. Volatile solvent was removed under reduced pressure. The crude product was triturated with DCM until solid is seen. Light yellow solid was filtered and dried under a high vacuum to afford 868.2 mg (89.3%) of (5)-1-(3-chloro-1H-pyrrolo-[3,2-b]pyridin-5-yl)ethanamine as HCl salt. 1H NMR (400 MHz, DMSO) δ 11.90 (br s, 1H), 8.47 (br s, 3H), 7.93 (d, J=8.5 Hz, 1H), 7.90 (d, J=2.9 Hz, 1H), 7.37 (d, J=8.5 Hz, 1H), 4.60 (dt, J=12.4, 6.1 Hz, 1H), 1.56 (d, J=6.8 Hz, 3H); MS (ESI) m/z: 196 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815877B2
Source datasetuspto-grants-2014_08
ORD IDord-e5959e7760f54ea38531dacc780578a3
Source noteuspto-grants-2014_08