1,2-Dichloroethane → HCID 58938767, compound
Reaction equation
[CH2:1]([O:8][C:9]([NH:11][CH:12]([CH2:18][CH:19]1[CH2:22][CH2:21][CH2:20]1)[CH:13]([OH:17])[C:14](O)=[O:15])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O[N:24]1C(=O)CC[C:25]1=O.C(Cl)CCl.CN>C(Cl)Cl.C1COCC1>[CH:19]1([CH2:18][CH:12]([NH:11][C:9](=[O:10])[O:8][CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[CH:13]([OH:17])[C:14]([NH:24][CH3:25])=[O:15])[CH2:22][CH2:21][CH2:20]1Participants
7
Procedure
To a solution of 3-(benzyloxycarbonylamino)-4-cyclobutyl-2-hydroxybutanoic acid (250 mg, 0.81 mmol) in DCM (20 mL) was added HOSu (140 mg, 1.22 mmol), EDC (234 mg, 1.22 mmol). After stirring for 1 hour, methylamine in THF (2 N, 0.81 mL) was added to the above mixture. The reaction mixture was stirred for 18 hours and then concentrated in vacuo. The residue was purified by Gilson Prep to afford the title compound (135 mg). 1H-NMR (CDCl3): δ 7.54-7.28 (m, 5H), 6.67 (NH, 1H), 5.03 (dd, 2H), 3.68 (m, 1H), 2.73 (m, 3H), 2.26 (m, 1H), 1.97-1.31 (m, 9H). (M+1) 321.
Workup
- stirringThe reaction mixture was stirred for 18 hours
- concentrationconcentrated in vacuo
- customThe residue was purified by Gilson Prep
Sources & evidence
- ORD record
- ord-fc78e68d4f394f5599f94293234ab95f
- Source dataset
- uspto-grants-2011_06
- Patent number
- US07964624B1
Reaction notes
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