Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Formic Acid | HCID 284 | — |
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | HCID 178511337 | HCID 178511337 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 178523417 | HCID 178523417 | — |
Reaction Steps
A mixture of formic acid (1 mL) and acetic anhydride (2 mL) was heated at 50° C. for 20 min. After cooling at room temperature, 3-(2-aminoethyl)amino-7-chloro-4H-1,2,4-benzothiadiazine 1,1-dioxide monohydrate (0.5 g) was added, and the reaction mixture was stirred for 2 h, then supplemented with water (20 mL) and stirred for 20 min. The precipitate was collected by filtration, washed with water and dried (yield: 0.3 g); m.p. 245-247° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06242443B1 |
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| Source dataset | uspto-grants-2001_06 |
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| ORD ID | ord-100ba8fdbd3240baabbb86904e5d23cf |
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| Source note | uspto-grants-2001_06 |
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