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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1494809Generated: October 31, 2026

1,8-Diazabicyclo(5.4.0)undec-7-ene → 10-(4-hydroxymethyl-2-isoindolinyl)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido [1,2,3-de][1,4]-benzoxazine-6-carboxylic acid

https://huagongshe.com/reaction/1494809

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant8,9-Difluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acidHCID 534278—
ReactantIsoindolin-4-ylmethanolHCID 19828510—
SolventDimethylformamideHCID 6228—
Product10-(4-hydroxymethyl-2-isoindolinyl)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido [1,2,3-de][1,4]-benzoxazine-6-carboxylic acidHCID 1516792729.3%

Reaction Steps

281 mg of 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido [1,2,3-de][1,4]-benzoxazine-6-carboxylic acid, 179 mg of 4-hydroxymethylisoindoline, 304 mg of DBU, and 2 ml of anhydrous DMF were processed in the same manner as in Example 20 to produce 120 mg of the target compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05026856
Source datasetuspto-grants-1991_06
ORD IDord-709ce5eb55ce4ceb806cb89f68c8fda0
Source noteuspto-grants-1991_06