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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1922467Generated: October 28, 2026

Hydrochloric Acid → HCID 178484204, compound

https://huagongshe.com/reaction/1922467

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantHCID 178484203HCID 178484203—
SolventMethanolHCID 887—
ProductHCID 178484204HCID 17848420499%

Reaction Steps

To a stirred solution of N-(8-fluoro-1-(2-(methylamino)ethyl)-1,2,3,4-tetrahydroquinolin-6-yl)thiophene-2-carboximidamide (57 mg, 0.171 mmol) in Methanol (3 ml) was added hydrogen chloride, 1M in diethyl ether (0.514 ml, 0.514 mmol). The resulting solution was then concentrated to give the desired N-(8-fluoro-1-(2-(methylamino)ethyl)-1,2,3,4-tetrahydroquinolin-6-yl)thiophene-2-carboximidamide dihydrochloride (69 mg, 0.170 mmol, 99% yield). 1H NMR (DMSO-d6) δ 9.79 (s, 1H); 9.13 (brs, 2H); 8.84 (s, 1H); 8.16 (d, J=4.8 Hz); 7.37 (t, J=4.3 Hz, 1H); 7.14 (d, J=14 Hz, 1H); 6.94 (s, 1H); 3.47-3.40 (m, 2H); 3.24-3.18 (m, 2H); 3.18-3.10 (m, 2H); 2.76 (t, J=6 Hz, 2H); 2.58 (t, J=5.1 Hz, 3H); 1.85-1.78 (m, 2H). EI-MS (m/z, %): 332 (M+, 9); 288 (100). HRMS calculated for C17H21FN4S (M+), calculated: 332.1477, observed: 332.1471. HPLC purity: 95%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08173813B2
Source datasetuspto-grants-2012_05
ORD IDord-ebcc08c8178448398a5f6685f85063e7
Source noteuspto-grants-2012_05