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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 991826Generated: November 2, 2026

4-Oxo-2,4,6,7-tetrahydropyrano[3,4-C]pyrrole-1-carbaldehyde → 3-[2-Oxo-3-(4-oxo-2,4,6,7-tetrahydro-pyrano[3,4-c]pyrrol-1-ylmethylene)-2,3-dihydro-1H-indol-5-yl]-benzoic acid

https://huagongshe.com/reaction/991826

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Oxo-2,4,6,7-tetrahydropyrano[3,4-C]pyrrole-1-carbaldehydeHCID 9834049—
Reactant3-(2-Oxo-2,3-dihydro-1H-indol-5-yl)-benzoic acidHCID 18414704—
Product3-[2-Oxo-3-(4-oxo-2,4,6,7-tetrahydro-pyrano[3,4-c]pyrrol-1-ylmethylene)-2,3-dihydro-1H-indol-5-yl]-benzoic acidHCID 69707087—

Reaction Steps

3-(2-Oxo-2,3-dihydro-1H-indol-5-yl)-benzoic acid was condensed with 4-oxo-2,4,6,7-tetrahydro-pyrano[3,4-c]pyrrole-1-carbaldehyde to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06465507B2
Source datasetuspto-grants-2002_10
ORD IDord-c0a5d9f1748f45cd99a61d61b0985ffc
Source noteuspto-grants-2002_10