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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 656404Generated: October 28, 2026

(+/-)-3-Methyl-5'-nitro-spiro[imidazolidine-4,2'-indane]-2,5-dione → (+/-)-3' Methyl-2',5'-dioxo-6,8-dihydrospiro[cyclopenta[g]quinoline-7,4'-imidazolidine]-2-carbaldehyde

https://huagongshe.com/reaction/656404

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(+/-)-3-Methyl-5'-nitro-spiro[imidazolidine-4,2'-indane]-2,5-dioneHCID 18440305—
Reactant(7R)-3'-methyl-2',5'-dioxo-6,8-dihydrospiro[cyclopenta[g]quinoline-7,4'-imidazolidine]-2-carbaldehydeHCID 57774205—
Product(+/-)-3' Methyl-2',5'-dioxo-6,8-dihydrospiro[cyclopenta[g]quinoline-7,4'-imidazolidine]-2-carbaldehydeHCID 57774216—

Reaction Steps

Essentially following the procedures described for Intermediate 13, but using (±)-5′-amino-3-methyl-spiro[imidazolidine-4,2′-indane]-2,5-dione (described in Intermediate 7) in place of (R)-5′-amino-3-methyl-spiro[imidazolidine-4,2′-indane]-2,5-dione, the title compound is prepared.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08071771B2
Source datasetuspto-grants-2011_12
ORD IDord-3581edc866744a0cb24e027fed96f841
Source noteuspto-grants-2011_12