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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 69596Generated: October 28, 2026

Isopropylamine → HCID 58324408, compound

https://huagongshe.com/reaction/69596

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropylamineHCID 6363—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant(S)-4-(4-((6-oxo-5,6,6a,7,8,9-hexahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-3-yl)methyl)piperazin-1-yl)benzoic acidHCID 58324409—
SolventDimethylformamideHCID 6228—
ProductHCID 58324408HCID 5832440841.3%

Reaction Steps

(S)-4-(4-((6-oxo-5,6,6a,7,8,9-hexahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-3-yl)methyl)piperazin-1-yl)benzoic acid (87.0 mg, 0.214 mmol) and propan-2-amine (18.93 mg, 0.320 mmol) were suspended in DMF (1 ml) and treated with DIPEA (0.186 ml, 1.068 mmol) and 2-(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)-1,1,3,3-tetramethylisouronium hexafluorophosphate(V) (162 mg, 0.427 mmol). The reaction mixture was stirred at room temperature for 3 h and purified using HPLC (25-95% acetonitrile in water, NH4HCO3 buffered) to afford (S)—N-isopropyl-4-(4-((6-oxo-5,6,6a,7,8,9-hexahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-3-yl)methyl)piperazin-1-yl)benzamide (39.6 mg, 0.088 mmol, 41.3% yield) as an off-white solid. 1H NMR (400 MHz, DMSO-d6) δ (ppm): 1.13 (d, J=6.57 Hz, 6 H) 1.85-2.00 (m, 3 H) 2.11-2.24 (m, 1 H) 2.41-2.48 (m, 4 H) 3.17-3.27 (m, 4 H) 3.34-3.44 (m, 3 H) 3.53-3.65 (m, 1 H) 3.93-4.13 (m, 2 H) 6.91 (d, J=9.09 Hz, 2 H) 6.99 (d, J=2.02 Hz, 1 H) 7.62 (d, J=2.02 Hz, 1 H) 7.72 (d, J=9.09 Hz, 2 H) 7.89 (d, J=7.83 Hz, 1 H) 10.44 (s, 1 H); [M+H] calc'd for C25H32N6O2, 449; found, 449.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822470B2
Source datasetuspto-grants-2014_09
ORD IDord-5e572ad82a194cd28cf915a84273cac4
Source noteuspto-grants-2014_09