Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Glycolic Acid | HCID 757 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | (S)-1-amino-3-{2-ethyl-4-[5-(4-isobutyl-6-methyl-pyridin-2-yl)-[1,2,4]oxadiazol-3-yl]-6-methyl-phenoxy}-propan-2-ol | HCID 68628773 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Sodium Bicarbonate | HCID 516892 | — |
| Product | HCID 44217839 | HCID 44217839 | 86.7% |
Reaction Steps
To a solution of (S)-1-amino-3-{2-ethyl-4-[5-(4-isobutyl-6-methyl-pyridin-2-yl)-[1,2,4]oxadiazol-3-yl]-6-methyl-phenoxy}-propan-2-ol (36 mg, 86 μmol), HOBt (14 mg, 103 μmol) and glycolic acid (8 mg, 103 μmol) in THF (3 mL), EDC HCl (20 mg, 103 μmol) is added. The mixture is stirred at rt for 18 h before it is diluted with sat. aq. NaHCO3-solution and extracted twice with EA. The combined org. extracts are dried over MgSO4, filtered and concentrated. The crude product is purified by prep. TLC using DCM containing 11% of methanol to give the title compound (36 mg) as a pale yellow oil; LC-MS: tR=0.98 min, [M+H]+=483.21; 1H NMR (CDCl3): δ 0.98 (d, J=6.3 Hz, 6H), 1.31 (t, J=7.5 Hz, 3H), 1.97-2.08 (m, 1H), 2.38 (s, 3H), 2.59 (d, J=6.8 Hz, 2H), 2.69-2.78 (m, 5H), 2.81 (s br, 1H), 3.42 (s br, 1H). 3.48-3.57 (m, 2H), 3.74-3.93 (m, 2H), 4.17-4.25 (m, 3H), 7.05 (s br, 1H), 7.19 (s, 1H), 7.93 (s, 1H), 7.94 (s, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08575200B2 |
|---|
| Source dataset | uspto-grants-2013_11 |
|---|
| ORD ID | ord-2a18635850be44188855017e413f3adc |
|---|
| Source note | uspto-grants-2013_11 |
|---|