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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 565499Generated: October 29, 2026

Methanol → HCID 131719710, compound

https://huagongshe.com/reaction/565499

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantOxalic AcidHCID 971—
Reactant(2s)-Glycidyl indol-4-yl etherHCID 10943254—
ReactantHCID 21268189HCID 21268189—
SolventEthyl AcetateHCID 8857—
ProductHCID 131719710HCID 131719710—

Reaction Steps

The title compound was prepared in similar fashion from (S)-(+)-4-(oxiranylmethoxy)-1H-indole and 3,4-dihydro-2-oxo-7-methoxyspiro[naphthalene-1(2H),4′-piperidine]. The resulting free base was dissolved in ethyl acetate, and precipitated with one equivalent of oxalic acid in ethyl acetate in 55% overall yield. FDMS m/e=434 (M+ of free base). α[D]589=−5.55 (c=0.54, methanol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06172073B2
Source datasetuspto-grants-2001_01
ORD IDord-68150815f54741f1b52bc89f48721058
Source noteuspto-grants-2001_01