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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1027895Generated: November 2, 2026

2-Methoxyethanol → 4-[1,4,7]Triazonan-1-yl-6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-2-ylamine

https://huagongshe.com/reaction/1027895

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-MethoxyethanolHCID 8019—
ReactantDiisopropylethylamineHCID 81531—
Reactant1,4,7-Triazacyclononane trihydrochlorideHCID 2724990—
Reactant4-chloro-6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-2-amineHCID 86621898—
SolventDiethyl EtherHCID 3283—
Product4-[1,4,7]Triazonan-1-yl-6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-2-ylamineHCID 66741683—

Reaction Conditions

Temperature110 °C

Reaction Steps

The product from Example 68A (52 mg, 0.212 mmol) was treated with 1,4,7-triazonane trihydrochloride (202 mg, 0.847 mmol), treated with Hunig's base (554 μl, 3.17 mmol), treated with 2-methoxyethanol (2116 μl), stirred at 110° C. for 19 hours, cooled, diluted with Et2O (25 mL), washed with 0.1 M NaOH (2×10 mL), washed with brine, dried (MgSO4), filtered, concentrated and purified by chromatography on silica gel (eluting with 2, 10 and 50% (9:1 MeOH:concentrated NH4OH) in CH2Cl2) to provide the title compound. 1H NMR (CD3OD) δ 2.08-2.24 (m, 2H), 2.40 (t, J=6.94 Hz, 2H), 2.67 (t, J=6.74 Hz, 2H), 2.94 (s, 4H), 3.10-3.16 (m, 4H), 3.71-3.77 (m, 4H), 7.24-7.29 (m, 1H), 7.32-7.41 (m, 2H), 7.63-7.68 (m, 1H); MS (M+H)+ m/z 339.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08735411B2
Source datasetuspto-grants-2014_05
ORD IDord-5b5b8a1c35344719b89d332781639602
Source noteuspto-grants-2014_05