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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 521369Generated: October 30, 2026

Hydrochloric Acid → HCID 67436165, compound

https://huagongshe.com/reaction/521369

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantHCID 67438472HCID 67438472—
ProductHCID 67436165HCID 6743616599%

Reaction Steps

A solution of tert-butyl 3-((tert-butoxycarbonylamino)(4-chlorophenyl)methyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate (0.652 g, 1.41 mmol) in MeOH (7.03 mL, 1.41 mmol) was saturated with HCl (g). The reaction mixture was stirred at room temperature for 30 minutes and then concentrated in vacuo to afford (4-chlorophenyl)(5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)methanamine bishydrochloride as a foam (0.47 g, 99%). LCMS (APCI+) M+H+: 264 (50%), 266 (10%), 267 (3%); rt=1.76 minutes. 1H NMR (400 MHz, d6-DMSO) δ □10.62 (s, 1H), 10.18 (s, 1H), 9.43 (s, 3H), 7.57 (d, J=8.6 Hz, 2H), 7.53 (d, J=8.6 Hz, 2H), 6.13 (m, 1H), 4.51 (m, 2H), 4.44 (m, 1H), 3.56 (m, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09328091B2
Source datasetuspto-grants-2016_05
ORD IDord-563ba7dbe26c492685bb731954afc397
Source noteuspto-grants-2016_05