N-tert-Butoxycarbonyl-L-tryptophan → (3S)-3-amino-1-{(3-azabicyclo[3.2.2]non-3-yl)carbonylmethyl}-2,3-dihydro-5-(2-fluorophenyl)-1H-1,4-benzodiazepin-2-one

HRID 963465

Reaction equation

HRID 963465 reaction equation
C(OC(N[C@H](C(O)=O)CC1C2C(=CC=CC=2)NC=1)=O)(C)(C)C.[NH2:23][CH:24]1[N:30]=[C:29]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=2[F:37])[C:28]2[CH:38]=[CH:39][CH:40]=[CH:41][C:27]=2[N:26]([CH2:42][C:43]([N:45]2[CH2:51][CH:50]3[CH2:52][CH2:53][CH:47]([CH2:48][CH2:49]3)[CH2:46]2)=[O:44])[C:25]1=[O:54]>C(#N)C.C(Cl)Cl>[NH2:23][C@H:24]1[N:30]=[C:29]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=2[F:37])[C:28]2[CH:38]=[CH:39][CH:40]=[CH:41][C:27]=2[N:26]([CH2:42][C:43]([N:45]2[CH2:51][CH:50]3[CH2:52][CH2:53][CH:47]([CH2:48][CH2:49]3)[CH2:46]2)=[O:44])[C:25]1=[O:54]

Participants

5

Reactant 2

HCID 83169N-tert-Butoxycarbonyl-L-tryptophanHCID 19081160(3RS)-1-{(3-azabicyclo[3.2.2]non-3-yl)-carbonylmethyl}-3-amino-5-(2-fluorophenyl)-2,3-dihydro-1H-1,4-benzodiazepin-2-one

Product 1

HCID 54425021(3S)-3-amino-1-{(3-azabicyclo[3.2.2]non-3-yl)carbonylmethyl}-2,3-dihydro-5-(2-fluorophenyl)-1H-1,4-benzodiazepin-2-oneYield 46%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of N-tert-butoxycarbonyl-L-tryptophan (0.70 g) in acetonitrile (20 ml) was added dropwise a solution of (3RS)-3-amino-1-{(3-azabicyclo[3.2.2]non-3-yl)carbonylmethyl}-2,3-dihydro-5-(2-fluorophenyl)-1H-1,4-benzodiazepin-2-one (1.00 g) in methylene chloride (5 ml) under stirring at ambient temperature. The mixture was stirred overnight. The precipitate was collected by filtration and the colorless solid was partitioned between methylene chloride and 0.5N NaOH. The organic layer was dried over sodium sulfate, filtered and concentrated in vacuo to afford (3S)-3-amino-1-{(3-azabicyclo[3.2.2]non-3-yl)carbonylmethyl}-2,3-dihydro-5-(2-fluorophenyl)-1H-1,4-benzodiazepin-2-one (0.46 g) as s colorless crystal.

Workup

  1. stirringThe mixture was stirred overnight
  2. filtrationThe precipitate was collected by filtration
  3. customthe colorless solid was partitioned between methylene chloride and 0.5N NaOH
  4. dry with materialThe organic layer was dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-b138eac3035940ed844fdebad43ac9a4
Source dataset
uspto-grants-1998_06
Patent number
US05763437

Linked notes

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