Trifluoroacetic acid → HCID 86596712, Verbindung

HRID 251320

Reaktionsgleichung

Reaktionsgleichung von HRID 251320
C(O)(C(F)(F)F)=O.[NH2:8][CH2:9][C:10]([NH:12][C@H:13]([C@@H:30]([OH:34])[CH2:31][CH2:32][CH3:33])[CH2:14][N:15]([CH2:26][CH:27]([CH3:29])[CH3:28])[C:16](=[O:25])[O:17][CH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)=[O:11].C(N(CC)C(C)C)(C)C.[N+:44]([C:47]1[CH:48]=[C:49]([CH:53]=[C:54]([C:56]([F:59])([F:58])[F:57])[CH:55]=1)[C:50](O)=[O:51])([O-:46])=[O:45].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl.CN(C=O)C>[OH:34][C@@H:30]([CH2:31][CH2:32][CH3:33])[C@@H:13]([NH:12][C:10](=[O:11])[CH2:9][NH:8][C:50](=[O:51])[C:49]1[CH:53]=[C:54]([C:56]([F:59])([F:58])[F:57])[CH:55]=[C:47]([N+:44]([O-:46])=[O:45])[CH:48]=1)[CH2:14][N:15]([CH2:26][CH:27]([CH3:29])[CH3:28])[C:16](=[O:25])[O:17][CH2:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Komponenten

7

Versuchsvorschrift

A solution of the TFA salt of benzyl (2S,3S)-2-(2-aminoacetamido)-3-hydroxyhexyl(isobutyl)carbamate in 1:1 CH2Cl2/DMF was charged successively with N,N-diisopropylethylamine (0.139 mL), 3-nitro-5-trifluoromethylbenzoic acid (39 mg), and HATU (90 mg). The reaction was stirred for 14 h at RT before being partitioned between EtOAc and water. The organic phase was washed with sat. NH4Cl, water, and brine before being dried (Na2SO4), filtered, and concentrated in vacuo to afford benzyl (2S,3S)-3-hydroxy-2-(2-(3-nitro-5-(trifluoromethyl)benzamido)acetamido)hexyl(isobutyl)carbamate (94 mg), which was taken onto the next step without further purification. MS found: (M+H)+=597.2.

Aufarbeitung

  1. custombefore being partitioned between EtOAc and water
  2. washThe organic phase was washed with sat. NH4Cl, water, and brine
  3. dry with materialbefore being dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-6caf5414c7f44477b6bee6c9a785efd6
Quelldatensatz
uspto-grants-2011_01
Patentnummer
US07863333B2

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