Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | 2-Chloroethyl chloroformate | HCID 12305 | — |
| Reactant | HCID 67250512 | HCID 67250512 | — |
| Solvent | 1,1-Dichloroethane | HCID 6365 | — |
| Product | HCID 67250493 | HCID 67250493 | — |
Reaction Steps
To a solution of Example 236A (60 mg, 161 mmol) in dichloroethane (0.5 mL) was add chloroethyl carbonochloridate (39.1 mg, 0.273 mmol). The mixture was heated for 2 hours at 85° C. Methanol (2 mL) was added, and the mixture cooled to room temperature. The solution was concentrated and NaOH (1 M, aqueous) was added until pH=10. The product was extracted with ethyl acetate. Purification via flash chromatography (0-70% methanol/dichloromethane) afforded the title compound. 1H NMR (400 MHz, DMSO-d6) δ ppm 7.12 (dd, J=7.93, 1.53 Hz, 1H), 6.81-6.98 (m, 2H), 4.27-4.38 (m, 1H), 4.13-4.21 (m, 1H), 3.02-3.15 (m, 3H), 2.89-2.99 (m, 1H), 2.76-2.88 (m, 2H), 2.64-2.75 (m, 1H), 1.83-1.98 (m, 2H); MS (DCI+) m/z 283 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08546377B2 |
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| Source dataset | uspto-grants-2013_10 |
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| ORD ID | ord-c1816e2585774b4da723af654a1f3bb0 |
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| Source note | uspto-grants-2013_10 |
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