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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 11008Generated: October 29, 2026

Formic Acid → HCID 145857223, compound

https://huagongshe.com/reaction/11008

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormic AcidHCID 284—
ReactantPyridineHCID 1049—
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactantbenzyl N-[(6S,8R)-8-amino-8-methyl-4-oxo-6-[[4-(N-phenylmethoxycarbonylcarbamimidoyl)phenyl]methylcarbamoyl]-6,7-dihydropyrrolo[1,2-a]pyrimidin-3-yl]-N-prop-2-enylcarbamateHCID 145857227—
SolventDichloromethaneHCID 6344—
ProductHCID 145857223HCID 14585722375%

Reaction Steps

To a solution of DCC (18.6 mg, 0.090 mmol) and formic acid (8.28 mg, 0.180 mmol) in CH2Cl2 that had been stirred at 0° C. for 10 min, was added intermediate 26a (30 mg, 0.045) in a solution of pyridine. The reaction was stirred at 0° C. for 15m then at rt for 2 h. The reaction mixture was concentrated in vacuo, then taken up in brine and extracted with chloroform (6×), dried (Na2SO4) and concentrated. It was purified by SiO2 chromatography (gradient elution, 1–12% MeOH/CH2Cl2) to afford 23.3 mg (75%) of intermediate 42a. MS (ESI) 692.2 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07094783B2
Source datasetuspto-grants-2006_08
ORD IDord-8aca7148692f4ee8a269e8efde4e1fcd
Source noteuspto-grants-2006_08