Glyoxylic acid, monohydrate → HCID 118093043, compound
Reaction equation
C(OC([N:11]([CH2:13][C:14]1[CH:15]=[C:16]([NH:27][C:28]([O:30][CH2:31][C@@H:32]([C:34]2[CH:39]=[CH:38][C:37](B(O)O)=[CH:36][C:35]=2[CH3:43])[CH3:33])=[O:29])[CH:17]=[C:18]([F:26])[C:19]=1[O:20][CH2:21][CH2:22][CH2:23][O:24][CH3:25])[CH3:12])=O)C1C=CC=CC=1.[NH2:44][C:45]1[CH:46]=[C:47]2[C:52](=[CH:53][CH:54]=1)[C:51]([N:55]([C:63]([O:65][C:66]([CH3:69])([CH3:68])[CH3:67])=[O:64])[C:56]([O:58][C:59]([CH3:62])([CH3:61])[CH3:60])=[O:57])=[N:50][CH:49]=[CH:48]2.O.[C:71]([OH:75])(=[O:74])[CH:72]=O>CC#N.CN(C=O)C>[C:66]([O:65][C:63]([N:55]([C:56]([O:58][C:59]([CH3:60])([CH3:61])[CH3:62])=[O:57])[C:51]1[C:52]2[C:47](=[CH:46][C:45]([NH:44][CH:72]([C:37]3[CH:38]=[CH:39][C:34]([C@@H:32]([CH3:33])[CH2:31][O:30][C:28](=[O:29])[NH:27][C:16]4[CH:15]=[C:14]([CH2:13][NH:11][CH3:12])[C:19]([O:20][CH2:21][CH2:22][CH2:23][O:24][CH3:25])=[C:18]([F:26])[CH:17]=4)=[C:35]([CH3:43])[CH:36]=3)[C:71]([OH:75])=[O:74])=[CH:54][CH:53]=2)[CH:48]=[CH:49][N:50]=1)=[O:64])([CH3:69])([CH3:68])[CH3:67]Participants
6
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 85 °C
Procedure
To a flask was added 28D (208 mg, 0.349 mmol), Intermediate 1 (138 mg, 0.384 mmol), glyoxylic acid monohydrate (32.1 mg, 0.349 mmol) in CH3CN (3 ml) and DMF (0.5 ml). The mixture was stirred at 85° C. for 2 h. The mixture was concentrated and purified by prep HPLC. The desired fractions were combined, concentrated. The residue was dissolved in MeOH (8 mL), and 10% Pd/C was added. The mixture was hydrogenated at 40 psi for 6 h. The mixture was filtered and concentrated to give 28E (188 mg, 0.225 mmol, 64.6% yield). MS (ESI) m/z: 834.5 (M+H)+.
Workup
- concentrationThe mixture was concentrated
- custompurified by prep HPLC
- concentrationconcentrated
- dissolutionThe residue was dissolved in MeOH (8 mL)
- addition10% Pd/C was added
- waitThe mixture was hydrogenated at 40 psi for 6 h
- filtrationThe mixture was filtered
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-0e29c330e3ae45859a50fd1f54a16b6b
- Source dataset
- uspto-grants-2015_11
- Patent number
- US09174974B2
Reaction notes
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