L-Alaninol → HCID 49801312, compound
Reaction equation
CO[C:3](=[O:24])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH2:11][C:12]2[C:13]([CH:18]3[CH2:23][CH2:22][O:21][CH2:20][CH2:19]3)=[N:14][O:15][C:16]=2[CH3:17])=[N:6][CH:5]=1.[CH3:25][C@H:26]([NH2:29])[CH2:27][OH:28]>>[OH:28][CH2:27][C@@H:26]([NH:29][C:3](=[O:24])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH2:11][C:12]2[C:13]([CH:18]3[CH2:19][CH2:20][O:21][CH2:22][CH2:23]3)=[N:14][O:15][C:16]=2[CH3:17])=[N:6][CH:5]=1)[CH3:25]Participants
3
Conditions
- Temperature
- 50 °C
Procedure
A mixture of 6-[5-methyl-3-(tetrahydro-pyran-4-yl)-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester (100 mg, 0.3 mol), S-(+)-2-amino-1-propanol (28.8 μL, 0.36 mmol) and TBD (12.8 mg, 0.09 mmol) was heated at 50° C. for 18 h under argon. The reaction mixture was concentrated onto silica then purified by chromatography (silica, 0 to 15% methanol in ethyl acetate) to give the title compound (30 mg, 27%) as a white solid. MS: m/e=374.4 [M+H]+.
Workup
- concentrationThe reaction mixture was concentrated onto silica
- customthen purified by chromatography (silica, 0 to 15% methanol in ethyl acetate)
Sources & evidence
- ORD record
- ord-a421ec89d9f6408fbf3acce37a47d6bf
- Source dataset
- uspto-grants-2013_01
- Patent number
- US08357703B2
Reaction notes
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