Ammonium Chloride → Trifluoroethylamine inhibitor, 1

HRID 1009248Notes

Reaction equation

HRID 1009248 reaction equation
[C:1]([CH2:3][NH:4][C:5](=[O:33])[C@H:6]([CH2:29][CH:30]([CH3:32])[CH3:31])[NH:7][C@@H:8]([C:13]1[CH:18]=[CH:17][C:16]([C:19]2[CH:24]=[CH:23][C:22]([S:25]([CH3:28])(=[O:27])=[O:26])=[CH:21][CH:20]=2)=[CH:15][CH:14]=1)[C:9]([F:12])([F:11])[F:10])#[N:2].F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)[C:45]2N=CC=C[C:44]=2N=N1.Cl.C1(N)CC1.[Cl-].[NH4+]>CN(C=O)C.C(OCC)C.C(N(CC)CC)C>[C:1]([C:3]1([NH:4][C:5](=[O:33])[C@H:6]([CH2:29][CH:30]([CH3:31])[CH3:32])[NH:7][C@@H:8]([C:13]2[CH:18]=[CH:17][C:16]([C:19]3[CH:20]=[CH:21][C:22]([S:25]([CH3:28])(=[O:27])=[O:26])=[CH:23][CH:24]=3)=[CH:15][CH:14]=2)[C:9]([F:10])([F:12])[F:11])[CH2:45][CH2:44]1)#[N:2]

Participants

8

Procedure

To a mixture of N-{(1S)-2,2,2-trifluoro-1-[4′-(methylsulfonyl)-1,1′-biphenyl-4-yl]ethyl}-L-leucine from Example 8 (0.83 g), O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (0.78 g), cyclopropylamine hydrochloride (0.466 g) in DMF (18 mL) at 0° C. was added triethylamine (0.9 mL). The mixture was kept at room temperature for 48 hours and then poured into dilute aqueous ammonium chloride and diethyl ether. The ether layer was separated and the aqueous further extracted with diethylether. The combined ether extracts were washed with brine, dried with magnesium sulfate and the solvent was removed in vacuo. The residue was purified in SiO2 using ethyl acetate and hexanes (1:1) as eluant, followed by a swish in diethyl ether to yield the title compound.

Workup

  1. customThe ether layer was separated
  2. extractionthe aqueous further extracted with diethylether
  3. washThe combined ether extracts were washed with brine
  4. dry with materialdried with magnesium sulfate
  5. customthe solvent was removed in vacuo
  6. customThe residue was purified in SiO2

Sources & evidence

ORD record
ord-bf9cd349159640608df95a70b132d66a
Source dataset
uspto-grants-2011_07
Patent number
US07973037B2

Reaction notes

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