Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 3,3-Difluoroazetidine hydrochloride | HCID 2758247 | — |
| Reactant | 2-Amino-4-(methylsulfonyl)benzoic acid | HCID 2761058 | — |
| Reactant | HCID 75058251 | HCID 75058251 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 25159401 | HCID 25159401 | — |
Reaction Steps
2-Amino-4-(methylsulfonyl)benzoic acid (0.25 g) and 3,3-difluoro-azetidine hydrochloride (0.19 g) were reacted according to the method described in Example 332C. The resultant intermediate (0.14 g) was then reacted with 2-oxaadamantane-1-carbonylchloride (1.25 equiv) (prepared from 2-oxaadamantane-1-carboxylic acid and thionyl chloride as in Example 12) and triethylamine (2 equiv) in acetonitrile (10 mL). Evaporation of solvents and flash chromotography over silica gel (10% ethyl acetate/hexane) provided 110 mg of the title compound. 1H NMR (dimethylsulfoxide-d6, 300 MHz) δ 1.66-2.03 (m, 10H), 2.19 (br s, 2H), 3.25 (s, 3H), 4.43-4.57 (br, 2H), 4.63-4.70 (br, 2H), 7.66 (dd, 1H), 7.82 (d, 1H), 8.79 (d, 1H), 10.76 (s, 1H); MS (ESI+) m/z 455 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08338623B2 |
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| Source dataset | uspto-grants-2012_12 |
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| ORD ID | ord-ff786a91cfa045009f175716e09d12cf |
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| Source note | uspto-grants-2012_12 |
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