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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 858863Generated: October 25, 2026

5-Cyclopentyl-5-hydroxy-9-(4-hydroxy-2,5-dimethyl-phenyl)-3-oxo-non-8-ynoic Acid Methyl Ester → 6-Cyclopentyl-6-[4-(2-methylsulfanyl-phenyl)-but-3-ynyl]-dihydro-pyran-2,4-dione

https://huagongshe.com/reaction/858863

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Cyclopentyl-5-hydroxy-9-(4-hydroxy-2,5-dimethyl-phenyl)-3-oxo-non-8-ynoic Acid Methyl EsterHCID 58762397—
Reactant5-Cyclopentyl-5-hydroxy-9-(2-methylsulfanyl-phenyl)-3-oxo-non-8-ynoic acid methyl esterHCID 58762762—
Product6-Cyclopentyl-6-[4-(2-methylsulfanyl-phenyl)-but-3-ynyl]-dihydro-pyran-2,4-dioneHCID 58762492—

Reaction Steps

The desired product was prepared analogously to example F(1), substituting 5-cyclopentyl-5-hydroxy-9-(2-methylsulfanyl-phenyl)-3-oxo-non-8-ynoic acid methyl ester (43 mg, 0.11 mmol) from Step 2 below in place of 5-cyclopentyl-5-hydroxy-9-(4-hydroxy-2,5-dimethyl-phenyl)-3-oxo-non-8-ynoic acid methyl ester. Yield: 38 mg, 97%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07148226B2
Source datasetuspto-grants-2006_12
ORD IDord-42d7feb49bb0463ea7c6e66f521b1ec4
Source noteuspto-grants-2006_12