Triphenylphosphine Oxide → HCID 57476296, compound

HRID 2239088Notes

Reaction equation

HRID 2239088 reaction equation
C1(P(=O)(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.FC(F)(F)S(OS(C(F)(F)F)(=O)=O)(=O)=O.C([S:43][CH:44]([CH2:69][N:70]1[CH2:75][CH2:74][S:73][CH2:72][CH2:71]1)[CH2:45][NH:46][C:47]([C:49]1[NH:50][C:51]2[C:56]([CH:57]=1)=[CH:55][CH:54]=[CH:53][C:52]=2[N:58]([CH3:68])[S:59]([C:62]1[CH:67]=[CH:66][CH:65]=[CH:64][N:63]=1)(=[O:61])=[O:60])=O)C1C=CC=CC=1>ClCCl.C(OCC)(=O)C>[CH3:68][N:58]([C:52]1[CH:53]=[CH:54][CH:55]=[C:56]2[C:51]=1[NH:50][C:49]([C:47]1[S:43][CH:44]([CH2:69][N:70]3[CH2:71][CH2:72][S:73][CH2:74][CH2:75]3)[CH2:45][N:46]=1)=[CH:57]2)[S:59]([C:62]1[CH:67]=[CH:66][CH:65]=[CH:64][N:63]=1)(=[O:60])=[O:61]

Participants

6

Reactant 3

HCID 13097Triphenylphosphine OxideHCID 67749Trifluoromethanesulfonic anhydrideHCID 59135717HCID 59135717, compound

Product 1

HCID 57476296HCID 57476296, compoundYield 5.3%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 8857Ethyl AcetateSolvent

Procedure

To a solution of triphenylphosphine oxide (0.79 g) in dichloromethane (5 mL) was slowly added trifluoromethanesulfonic anhydride (0.38 mL) under ice-cooling, and the mixture was stirred for 20 min. A solution of N-[2-(benzylthio)-3-thiomorpholinopropyl]-7-[methyl(pyridin-2-ylsulfonyl)amino]-1H-indole-2-carboxamide (0.67 g) in dichloromethane (5 mL) was added dropwise, and the mixture was stirred for 1 hr under ice-cooling. The reaction solution was diluted with ethyl acetate, washed with aqueous citric acid solution, water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained solid was filtered off, and washed with ethyl acetate. The filtrate was concentrated under reduced pressure, and the obtained residue was subjected to silica gel column chromatography (ethyl acetate:hexane=4:6-6:4). The obtained colorless oil was crystallized from ethyl acetate-hexane to give the title compound (29 mg, yield: 5%) as colorless crystals. MS: 488 (MH+). melting point 142-144° C.

Workup

  1. temperaturecooling
  2. stirringthe mixture was stirred for 1 hr under ice-
  3. temperaturecooling
  4. washwashed with aqueous citric acid solution, water and saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. filtrationThe obtained solid was filtered off
  8. washwashed with ethyl acetate
  9. concentrationThe filtrate was concentrated under reduced pressure
  10. customThe obtained colorless oil was crystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-a3639a09eaea417282aea5166ab6d8ec
Source dataset
uspto-grants-2010_05
Patent number
US07718798B2

Reaction notes

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