Ethyl 2-(4-((2-(3-hydroxycyclopent-1-en-1-yl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)amino)phenyl)acetate → ethyl 2-(4-((2-(3-hydroxycyclopentyl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)amino)phenyl)acetate
Reaction equation
[OH:1][CH:2]1[CH2:6][CH2:5][C:4]([C:7]2[N:12]=[C:11]3[CH2:13][CH2:14][CH2:15][C:10]3=[C:9]([NH:16][C:17]3[CH:22]=[CH:21][C:20]([CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])=[CH:19][CH:18]=3)[CH:8]=2)=[CH:3]1>[Pd].C(OCC)(=O)C.C(O)C>[OH:1][CH:2]1[CH2:6][CH2:5][CH:4]([C:7]2[N:12]=[C:11]3[CH2:13][CH2:14][CH2:15][C:10]3=[C:9]([NH:16][C:17]3[CH:18]=[CH:19][C:20]([CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])=[CH:21][CH:22]=3)[CH:8]=2)[CH2:3]1Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
A 250-mL round bottom flask was charged with ethyl 2-(4-((2-(3-hydroxycyclopent-1-en-1-yl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)amino)phenyl)acetate (0.109 g, 0.29 mmol) and 10% palladium on carbon (0.028 g) in 1:1 ethyl acetate/ethanol (12 mL). This mixture was vigorously stirred under H2 (1 atm) for 4 h. After this time, the mixture was filtered through celite and the filtrate concentrated under reduced pressure. The residue was purified by preparative HPLC (water/acetonitrile with 0.05% TFA) to afford two diastereomers of the title compound:
Workup
- filtrationAfter this time, the mixture was filtered through celite
- concentrationthe filtrate concentrated under reduced pressure
- customThe residue was purified by preparative HPLC (water/acetonitrile with 0.05% TFA)
Sources & evidence
- ORD record
- ord-216625230d834eb0bf579d5cb0a4c175
- Source dataset
- uspto-grants-2015_12
- Patent number
- US09221843B2
Reaction notes
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