HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (s)-(z)-5-[[5-Fluoro-2-oxo-4-[(pyrrolidin-2-yl)ethynyl]-1,2-dihydro-indol-3-ylidene]methyl]-4-methyl-1h-pyrrole-3-carboxylic acid ethyl ester hydrochloride salt
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | (S)-(Z)-5-[[5-Fluoro-2-oxo-4-[(pyrrolidin-2-yl)ethynyl]-1,2-dihydro-indol-3-ylidene]methyl]-4-methyl-1H-pyrrole-3-carboxylic acid ethyl ester | HCID 15907936 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | (s)-(z)-5-[[5-Fluoro-2-oxo-4-[(pyrrolidin-2-yl)ethynyl]-1,2-dihydro-indol-3-ylidene]methyl]-4-methyl-1h-pyrrole-3-carboxylic acid ethyl ester hydrochloride salt | HCID 69948456 | — |
Reaction Steps
A solution of (S)-(Z)-5-[[5-Fluoro-2-oxo-4-[(pyrrolidin-2-yl)ethynyl]-1,2-dihydro-indol-3-ylidene]methyl]-4-methyl-1H-pyrrole-3-carboxylic acid ethyl ester (14 mg, 0.03 mmol) (from Example 121 above) in dioxane (10 mL) was treated with aqueous HCl under vigorous stirring. (S)-(Z)-5-[[5-Fluoro-2-oxo-4-[(pyrrolidin-2-yl)ethynyl]-1,2-dihydro-indol-3-ylidene]methyl]-4-methyl-1H-pyrrole-3-carboxylic acid ethyl ester hydrochloride salt was obtained upon lyophilization. (Yield 12 mg, 79%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06130239 |
| Source dataset | uspto-grants-2000_10 |
| ORD ID | ord-6035307ff35e40579e0490f23b169eda |
| Source note | uspto-grants-2000_10 |