Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20690Generated: October 25, 2026

Morpholine → 4-(3,5-Dichloropyridin-4-ylamino)-7-methoxy-8-(4-morpholinobutoxy)-2H-chromen-2-one

https://huagongshe.com/reaction/20690

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMorpholineHCID 8083—
Reactant8-(4-bromobutoxy)-4-(3,5-dichloropyridin-4-ylamino)-7-methoxy-2H-chromen-2-oneHCID 24849567—
Product4-(3,5-Dichloropyridin-4-ylamino)-7-methoxy-8-(4-morpholinobutoxy)-2H-chromen-2-oneHCID 24849889—

Reaction Steps

The title compound was prepared from morpholine and 8-(4-bromobutoxy)-4-(3,5-dichloropyridin-4-ylamino)-7-methoxy-2H-chromen-2-one (Example 25) following the procedure outlined in Example 52. 1H NMR (400 MHz, DMSO-d6; HCl salt): δ 10.67 (br, 1H), 9.65 (br s, 1H), 8.82 (s, 2H), 8.01 (d, 1H), 7.22 (d, 1H), 4.64 (s, 1H), 4.01 (t, 2H), 3.93 (s, 3H), 3.92 (m, 2H), 3.76 (t, 2H), 3.42 (d, 2H), 3.20 (m, 2H), 3.05 (m, 2H), 1.97 (m, 2H), 1.74 (m, 2H); MS (ESI): 494.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745646B2
Source datasetuspto-grants-2010_06
ORD IDord-5463a61500a24191adb453f447212d07
Source noteuspto-grants-2010_06