5-[2-(Dibenzylamino)-1-hydroxyethyl]-indole-7-carboxamide → 5-(1-hydroxy-2-aminoethyl)-1H-indole-7-carboxamide
Reaction equation
C([N:8](CC1C=CC=CC=1)[CH2:9][CH:10]([C:12]1[CH:13]=[C:14]2[C:18](=[C:19]([C:21]([NH2:23])=[O:22])[CH:20]=1)[NH:17][CH:16]=[CH:15]2)[OH:11])C1C=CC=CC=1>CO.[Pd]>[NH2:8][CH2:9][CH:10]([C:12]1[CH:13]=[C:14]2[C:18](=[C:19]([C:21]([NH2:23])=[O:22])[CH:20]=1)[NH:17][CH:16]=[CH:15]2)[OH:11]Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
A solution of 5-[2-(dibenzylamino)-1-hydroxyethyl]-indole-7-carboxamide (119.7 mg, 0.3 mmol, described above) was hydrogenated for 28 hours at atmospheric pressure and room temperature in dry methanol (12.0 mL) containing 10% palladium on carbon. The mixture was filtered and the filtrate was evaporated. Crystallization from an ethyl acetate-diethyl ether mixture gave 5-(2-amino-1-hydroxyethyl)indole-7-carboxamide: mp 88°-90° C.; and NMR(DMSO-d6) δ 2.70(d, 2H), 2.80-3.60(br s, 5H), 4.50(t, 1H), 6.40(m, 1H), 7.00-7.70(m, 3H) and 10.75(br s, 1H).
Workup
- filtrationThe mixture was filtered
- customthe filtrate was evaporated
- customCrystallization from an ethyl acetate-diethyl ether mixture
Sources & evidence
- ORD record
- ord-bfb643c010cd42d0958185fd015d3158
- Source dataset
- uspto-grants-1985_06
- Patent number
- US04521606
Reaction notes
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