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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1061230Generated: November 2, 2026

Beta-Alanine → 5-[4-(1,4-Dioxa-8-aza-spiro[4.5]dec-8-yl)-3-fluoro-benzylidene]-thiazolidine-2,4-dione

https://huagongshe.com/reaction/1061230

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBeta-AlanineHCID 239—
ReactantThiazolidinedioneHCID 5437—
Reactant4-(1,4-Dioxa-8-aza-spiro[4.5]dec-8-yl)-3-fluoro-benzaldehydeHCID 22220489—
Product5-[4-(1,4-Dioxa-8-aza-spiro[4.5]dec-8-yl)-3-fluoro-benzylidene]-thiazolidine-2,4-dioneHCID 86758857—

Reaction Steps

The title compound was prepared from 4-(1,4-dioxa-8-aza-spiro[4.5]dec-8-yl)-3-fluoro-benzaldehyde (which was obtained in Example 59), 2,4 thiazolidinedione and β-alanine according to the procedure of Example 33 as an orange solid; mp 159-160° C.; 1H NMR (300 MHz, CDCl3) δ 7.01 (m, 1H), 7.13-7.22 (m, 2H), 7.71-7.77 (m, 1H); MS (ES) m/z: 363.3 (M−H)−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06525202B2
Source datasetuspto-grants-2003_02
ORD IDord-e6b54091a3c74bb981467868e31f7db0
Source noteuspto-grants-2003_02