Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Oxalic acid dihydrate | HCID 61373 | — |
| Reactant | HCID 57475956 | HCID 57475956 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 57475957 | HCID 57475957 | 81.9% |
Reaction Steps
A mixture of 1-(methoxymethyl)-7-[(cyclopropylmethyl)(2-thienylsulfonyl)amino]-1H-indole-2-carboxamide (390 mg), oxalic acid dihydrate (351 mg), methanol (15 ml) and water (15 ml) was stirred at 70° C. for 1 hr, and then at 90° C. for 14 hr. The reaction mixture was allowed to cool to room temperature, and the resulting crystals were collected by filtration, washed successively with water and diethyl ether-hexane mixture, and dried to give the title compound (286 mg, yield 81%) as crystals. melting point 229-231° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07718798B2 |
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| Source dataset | uspto-grants-2010_05 |
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| ORD ID | ord-3656b5abeb9a484892fcc5cbf5a285e7 |
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| Source note | uspto-grants-2010_05 |
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