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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1805804Generated: October 31, 2026

Fumaric Acid → HCID 67022495, compound

https://huagongshe.com/reaction/1805804

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFumaric AcidHCID 444972—
ReactantHCID 11853501HCID 11853501—
SolventAcetoneHCID 180—
SolventIsopropanolHCID 3776—
ProductHCID 67022495HCID 6702249529%

Reaction Steps

(2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol (41.9 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 12.8 mg (0.11 mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture of acetone and isopropanol) are added. The crystals are filtered off and dried to obtain 15.4 mg (29%) of the title compound (m. p.: 170° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08354535B2
Source datasetuspto-grants-2013_01
ORD IDord-d1c3588e483145dfbd5c425639d9e17f
Source noteuspto-grants-2013_01