Potassium Carbonate → methyl 1-{2-[bis(tert-butoxycarbonyl)amino]-3-methoxy-3-oxopropyl}-2-bromo-3-cyclohexyl-1H-indole-6-carboxylate

HRID 1444635Notes

Reaction equation

HRID 1444635 reaction equation
[Br:1][C:2]1[NH:3][C:4]2[C:9]([C:10]=1[CH:11]1[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1)=[CH:8][CH:7]=[C:6]([C:17]([O:19][CH3:20])=[O:18])[CH:5]=2.N1C2C(=CC=C(C(OC)=O)C=2)C=C1.C([O-])([O-])=O.[K+].[K+].[C:40]([O:44][C:45]([N:47]([C:54]([O:56][C:57]([CH3:60])([CH3:59])[CH3:58])=[O:55])[C:48](=[CH2:53])[C:49]([O:51][CH3:52])=[O:50])=[O:46])([CH3:43])([CH3:42])[CH3:41]>CC#N>[C:40]([O:44][C:45]([N:47]([C:54]([O:56][C:57]([CH3:58])([CH3:60])[CH3:59])=[O:55])[CH:48]([C:49]([O:51][CH3:52])=[O:50])[CH2:53][N:3]1[C:4]2[C:9](=[CH:8][CH:7]=[C:6]([C:17]([O:19][CH3:20])=[O:18])[CH:5]=2)[C:10]([CH:11]2[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]2)=[C:2]1[Br:1])=[O:46])([CH3:43])([CH3:41])[CH3:42]

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 639844Methyl indole-6-carboxylateHCID 10870342Methyl 2-(bis((tert-butoxy)carbonyl)amino)prop-2-enoateHCID 11175076Methyl 2-bromo-3-cyclohexyl-1H-indole-6-carboxylate

Product 1

HCID 68699898methyl 1-{2-[bis(tert-butoxycarbonyl)amino]-3-methoxy-3-oxopropyl}-2-bromo-3-cyclohexyl-1H-indole-6-carboxylate

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of methyl 2-bromo-3-cyclohexyl-1H-indole-6-carboxylate (prepared as described in WO 2004087714 from commercially available methyl indole-6-carboxylate) in MeCN (0.08 M) were added 6 eq of K2CO3 and 1.2 eq of methyl 2-[bis(tert-butoxycarbonyl)amino]acrylate. The mixture was stirred at RT for 16 h before being filtered and concentrated in vacuo to afford the title compound as a viscous oil which solidified on standing (quantitative); MS (ES+) m/z 659 (M+Na)+, 661 (M+Na)+.

Workup

  1. filtrationbefore being filtered
  2. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-e5a216db40a641fda75a7e4ca23c9c98
Source dataset
uspto-grants-2010_02
Patent number
US07662809B2

Reaction notes

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