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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 720498Generated: October 29, 2026

5-Ethyl-5-hydroxy-1,4,5,8-tetrahydrooxepino[3,4-c]pyridine-3,9-dione → 5,12-diethyl-9-fluoro-5-hydroxy-10-methoxy-1,4,5,13-tetrahydro-3H,15H-oxepino[3',4':6,7]indolizino[1,2-b]quinoline-3,15-dione

https://huagongshe.com/reaction/720498

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Ethyl-5-hydroxy-1,4,5,8-tetrahydrooxepino[3,4-c]pyridine-3,9-dioneHCID 10537047—
ReactantHCID 21891951HCID 21891951—
Product5,12-diethyl-9-fluoro-5-hydroxy-10-methoxy-1,4,5,13-tetrahydro-3H,15H-oxepino[3',4':6,7]indolizino[1,2-b]quinoline-3,15-dioneHCID 21891894—

Reaction Steps

(2-chloro-4-ethyl-7-fluoro-6-methoxy-3-quinolinyl)methanol is coupled with compound (M) as described in Stage 11.j. of Example 11. The resultant coupled product is cyclized according to the procedure described in Stage 11.k. A yellow solid is obtained, m.p.>275° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07135478B2
Source datasetuspto-grants-2006_11
ORD IDord-c94e3d94cfc241a7968c661b4b5ffa0b
Source noteuspto-grants-2006_11