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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 78558Generated: October 26, 2026

1,1'-Carbonyldiimidazole → HCID 59471686, compound

https://huagongshe.com/reaction/78558

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantDiisopropylethylamineHCID 81531—
Reactant(R)-(-)-1-(2-Pyrrolidinylmethyl)pyrrolidineHCID 853151—
Reactant3-(5-Amino-6-(phenylcarbamoyl)pyrazin-2-yl)benzoic acidHCID 46833743—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 59471686HCID 5947168673.5%

Reaction Conditions

Temperature38 °C

Reaction Steps

1-[[(2R)-pyrrolidin-2-yl]methyl]pyrrolidine (69.23 mg, 0.449 mmol) was weighed into a greenhouse tube and treated with a solution of 3-(5-amino-6-(phenylcarbamoyl)pyrazin-2-yl)benzoic acid (50 mg, 0.150 mmol), CDI (48.51 mg, 0.299 mmol) and DMAP (1.82 mg, 0.015 mmol) in DMSO (1 mL of a stock solution). DIPEA (78.2 uL, 0.449 mmol) was then added and the mixture stirred at 38° C. for 6 hours. The reaction mixture was filtered and the resultant residue was purified by reverse phase preparative HPLC [Waters Sunfire C18, 10 uM, 100 A column, gradient 10%-95% B (solvent A: 0.05% TFA in water, solvent B: CH3CN) over 16 minutes at 25 mL/min]. The fractions were freeze-dried to give the title compound as a solid (51.87 mg, 73% Yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841308B2
Source datasetuspto-grants-2014_09
ORD IDord-e41d59218ed049c59525f2f1bd958d5d
Source noteuspto-grants-2014_09