HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Amino-5-methylpyridine → Thiophene-3-sulfonamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Amino-5-methylpyridine | HCID 15348 | — |
| Reactant | 1-(6-Amino-1,3-benzodioxol-5-yl)ethan-1-one | HCID 120000 | — |
| Reactant | N-(4-chloro-3-methyl-5-isoxazolyl)2-{[2-acetyl-4,5-(methylenedioxy)phenyl]aminocarbonyl}thiophene-3-sulfonamide | HCID 10696210 | — |
| Product | Thiophene-3-sulfonamide | HCID 1201388 | — |
| Product | N-(4-chloro-3-methyl-5-isoxazolyl)-2-[(3-methyl-6-pyridyl)aminocarbonyl]thiophene-3-sulfonamide | HCID 10740439 | — |
Reaction Steps
N-(4-chloro-3-methyl-5-isoxazolyl)-2-(3-methyl-6-pyridyl)aminocarbonyl]thiophene-3-sulfonamide was prepared by the method set forth for N-(4-chloro-3-methyl-5-isoxazolyl) 2-{[2-acetyl-4,5-(methylenedioxy)-phenyl]aminocarbonyl}thiophene-3-sulfonamide (EXAMPLE 148), except that 2-amino-5-picoline was used in stead of 2′-amino-4′,5′-(methylenedioxy)acetophenone, N-(4-chloro-3-methyl-5-isoxazolyl)-2-[(3-methyl-6-pyridyl)aminocarbonyl]thiophene-3-sulfonamide was obtained, via HPLC purification of the crude reaction mixture, as a bright yellow powder (17% yield, m.p. 158-160° C.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06331637B1 |
| Source dataset | uspto-grants-2001_12 |
| ORD ID | ord-ee0d6b9e1226458c9a3cbd5162ef7550 |
| Source note | uspto-grants-2001_12 |