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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20672Generated: October 29, 2026

4-(3,5-dichloropyridin-4-ylamino)-8-hydroxy-7-methoxy-2H-chromen-2-one → 4-(3,5-Dichloropyridin-4-ylamino)-8-(((3aS,4S,6aS)-2,2-dimethyl-6-oxotetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methoxy)-7-methoxy-2H-chromen-2-one

https://huagongshe.com/reaction/20672

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(3,5-dichloropyridin-4-ylamino)-8-hydroxy-7-methoxy-2H-chromen-2-oneHCID 24849570—
Reactant(3aS,6R,6aR)-6-(bromomethyl)-2,2-dimethyldihydrofuro[3,4-d][1,3]dioxol-4-(3aH)-oneHCID 68741369—
Product4-(3,5-Dichloropyridin-4-ylamino)-8-(((3aS,4S,6aS)-2,2-dimethyl-6-oxotetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methoxy)-7-methoxy-2H-chromen-2-oneHCID 24849756—

Reaction Steps

The title compound was prepared from (3aS,6R,6aR)-6-(bromomethyl)-2,2-dimethyldihydrofuro[3,4-d][1,3]dioxol-4-(3aH)-one and 4-(3,5-dichloropyridin-4-ylamino)-8-hydroxy-7-methoxy-2H-chromen-2-one (Example 29) following the procedure outlined in Example 25. 1H NMR (400 MHz, DMSO-d6): δ 9.57 (s, 1H), 8.83 (s, 2H), 7.98 (d, 1H), 7.23 (s, 1H), 5.16 (m, 2H), 4.87 (m, 1H), 4.67 (s, 1H) 4.36 (m, 2H), 3.93 (s, 3H), 1.40 (s, 3H), 1.37 (s, 3H); MS (ESI): 522.8.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745646B2
Source datasetuspto-grants-2010_06
ORD IDord-e93f368e53dd4e858db07cd7df9a85d3
Source noteuspto-grants-2010_06