Trifluoroacetic acid → Methyl(7r)-7-amino-14-cyclohexyl-7,8-dihydro-6h-indolo[1,2-e][1,5]benzoxazocine-11-carboxylate

HRID 498993Notes

Reaction equation

HRID 498993 reaction equation
C(OC([NH:8][C@@H:9]1[CH2:16][N:15]2[C:17]3[CH:18]=[C:19]([C:30]([O:32][CH3:33])=[O:31])[CH:20]=[CH:21][C:22]=3[C:23]([CH:24]3[CH2:29][CH2:28][CH2:27][CH2:26][CH2:25]3)=[C:14]2[C:13]2[CH:34]=[CH:35][CH:36]=[CH:37][C:12]=2[O:11][CH2:10]1)=O)(C)(C)C.C(O)(C(F)(F)F)=O.C([O-])(O)=O.[Na+]>C(Cl)Cl>[NH2:8][C@@H:9]1[CH2:16][N:15]2[C:17]3[CH:18]=[C:19]([C:30]([O:32][CH3:33])=[O:31])[CH:20]=[CH:21][C:22]=3[C:23]([CH:24]3[CH2:29][CH2:28][CH2:27][CH2:26][CH2:25]3)=[C:14]2[C:13]2[CH:34]=[CH:35][CH:36]=[CH:37][C:12]=2[O:11][CH2:10]1

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 53381223methyl (7R)-7-[(tert-butoxycarbonyl)amino]-14-cyclohexyl-7,8-dihydro-6H-indolo[1,2-e][1,5]benzoxazocine-11-carboxylate

Product 1

HCID 50994751Methyl(7r)-7-amino-14-cyclohexyl-7,8-dihydro-6h-indolo[1,2-e][1,5]benzoxazocine-11-carboxylateYield 100%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

Methyl (7R)-7-[(tert-butoxycarbonyl)amino]-14-cyclohexyl-7,8-dihydro-6H-indolo[1,2-e][1,5]benzoxazocine-11-carboxylate (0.14 M) in DCM was treated with TFA (10 eq) and stirred at RT for 1 h. The reaction was diluted with DCM and cautiously basified with aq. NaHCO3, before separating the phases and extracting the aqueous with DCM. The combined organics were washed with brine, dried over Na2SO4, filtered and concentrated in vacuo to afford the product as an off-white foam (100%) that was used without further purification. (ES+) m/z 405 (M+H)+; [α]D+42.3, c=1, MeOH

Workup

  1. custombefore separating the phases
  2. extractionextracting the aqueous with DCM
  3. washThe combined organics were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-76df756f689943b8b738d55df2f7387e
Source dataset
uspto-grants-2010_08
Patent number
US07767660B2

Reaction notes

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