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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 476132Generated: October 31, 2026

Diisopropylethylamine → (R)-methyl 4-(4-((1-(1,3,4-oxadiazol-2-yl)propyl)(cyclopentyl)amino)-5-nitropyrimidin-2-ylamino)-3-methoxybenzoate

https://huagongshe.com/reaction/476132

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethyl 4-amino-3-methoxybenzoateHCID 602411—
ReactantHCID 86667882HCID 86667882—
Solvent4-Methyl-2-PentanolHCID 7910—
Product(R)-methyl 4-(4-((1-(1,3,4-oxadiazol-2-yl)propyl)(cyclopentyl)amino)-5-nitropyrimidin-2-ylamino)-3-methoxybenzoateHCID 5337534548.4%

Reaction Conditions

Temperature140 °C

Reaction Steps

2-chloro-N-cyclopentyl-5-nitro-N-[(1R)-1-(1,3,4-oxadiazol-2-yl)propyl]pyrimidin-4-amine (61.5 mg, 0.1743 mmol) and methyl 4-amino-3-methoxy benzoate (37.9 mg, 0.2092 mmol) in 4-methylpentan-2-ol (600 L) were treated with DIPEA (33.8 mg, 45.6 mL, 0.2614 mmol) and the reaction mixture stirred at 140° C. for 4 hours. The reaction mixture was concentrated in vacuo and the residue purified by column chromatography (50% EtOAc/Petrol) to give the sub-title compound as a brown oil (42 mg, 48%); 1H NMR (400.0 MHz, DMSO) d 0.75-0.89 (3H, m), 1.15-1.75 (8H, m), 2.24-2.34 (1H, m), 2.40-2.51 (1H, m), 2.61-2.72 (1H, m), 3.55-3.63 (1H, m), 3.84 (3H, s), 3.89 (3H, s), 7.44 (1H, s), 7.55-7.65 (2H, m), 7.75-8.03 (1H, br s), 8.12 (1H, s), 8.77 (1H, s); MS ES(+) 498.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637666B2
Source datasetuspto-grants-2014_01
ORD IDord-360a1c6af6d044bc86fdaa838dad76a8
Source noteuspto-grants-2014_01