1,1'-Carbonyldiimidazole → 3-acetyl-1-butyl-N-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-1H-indole-6-carboxamide

HRID 349014Notes

Reaction equation

HRID 349014 reaction equation
[C:1]([C:4]1[C:12]2[C:7](=[CH:8][C:9]([C:13]([OH:15])=O)=[CH:10][CH:11]=2)[N:6]([CH2:16][CH2:17][CH2:18][CH3:19])[CH:5]=1)(=[O:3])[CH3:2].C(N1C=CN=C1)(N1C=CN=C1)=O.[NH2:32][C@@H:33]([CH2:47][C:48]1[CH:53]=[C:52]([F:54])[CH:51]=[C:50]([F:55])[CH:49]=1)[C@H:34]([OH:46])[CH2:35][NH:36][CH2:37][C:38]1[CH:43]=[CH:42][CH:41]=[C:40]([CH2:44][CH3:45])[CH:39]=1>ClCCl>[C:1]([C:4]1[C:12]2[C:7](=[CH:8][C:9]([C:13]([NH:32][C@@H:33]([CH2:47][C:48]3[CH:49]=[C:50]([F:55])[CH:51]=[C:52]([F:54])[CH:53]=3)[C@H:34]([OH:46])[CH2:35][NH:36][CH2:37][C:38]3[CH:43]=[CH:42][CH:41]=[C:40]([CH2:44][CH3:45])[CH:39]=3)=[O:15])=[CH:10][CH:11]=2)[N:6]([CH2:16][CH2:17][CH2:18][CH3:19])[CH:5]=1)(=[O:3])[CH3:2]

Participants

5

Reactant 3

HCID 682631,1'-CarbonyldiimidazoleHCID 210857003-acetyl-1-butyl-1H-indole-6-carboxylic acidHCID 57487282(2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol

Product 1

HCID 575082453-acetyl-1-butyl-N-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-1H-indole-6-carboxamideYield 77.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

3-Acetyl-1-butyl-1H-indole-6-carboxylic acid (0.322 g) was dissolved in dichloromethane (15 mL). 1,1′-Carbonyldiimidazole was added (0.171 g). The mixture was stirred for 2 h and then a mixture of (2R,3S)-3-amino-4-(3,5-difluorophenyl)-1-[(3-ethylbenzyl)amino]butan-2-ol (0.250 g) in dichloromethane (15 mL) was added. After stirring overnight, the mixture was partitioned between dichloromethane, water, and brine. The organic layer was dried over sodium sulfate, filtered, and concentrated. The residue was chromatographed on silica gel using MeOH/dichloromethane (4/96) to give 3-acetyl-1-butyl-N-{(1S,2R)-1-(3,5-difluorobenzyl)-3-[(3-ethylbenzyl)amino]-2-hydroxypropyl}-1H-indole-6-carboxamide (0.335 g). MS (ESI+) for C34H39F2N3O3+H1 m/z 576.30 (M+H)+.

Workup

  1. additionwas added
  2. stirringAfter stirring overnight
  3. customthe mixture was partitioned between dichloromethane, water, and brine
  4. dry with materialThe organic layer was dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was chromatographed on silica gel

Sources & evidence

ORD record
ord-c65451e66e454de4b3e3c48a1a6c73f0
Source dataset
uspto-grants-2007_02
Patent number
US07176242B2

Reaction notes

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