Diisopropylethylamine → 5-chloro-N-{(1S)-2-cyclohexyl-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide

HRID 2392062Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2392062
[Cl:1][C:2]1[S:6][C:5]([C:7]([OH:9])=O)=[CH:4][C:3]=1[C:10]1[N:14]([CH3:15])[N:13]=[CH:12][CH:11]=1.C(N(CC)C(C)C)(C)C.[NH2:25][C@@H:26]([CH2:39][CH:40]1[CH2:45][CH2:44][CH2:43][CH2:42][CH2:41]1)[CH2:27][N:28]1[C:36](=[O:37])[C:35]2[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=2)[C:29]1=[O:38].CC(OC(N[C@H](C(O)=O)CC1C=CC=CC=1C(F)(F)F)=O)(C)C.F[P-](F)(F)(F)(F)F.Br[P+](N1CCCC1)(N1CCCC1)N1CCCC1>C(Cl)Cl>[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:25][C@H:26]([CH2:27][N:28]2[C:36](=[O:37])[C:35]3[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=3)[C:29]2=[O:38])[CH2:39][CH:40]2[CH2:45][CH2:44][CH2:43][CH2:42][CH2:41]2)=[O:9])=[CH:4][C:3]=1[C:10]1[N:14]([CH3:15])[N:13]=[CH:12][CH:11]=1

Komponenten

7

Edukt 5

HCID 81531DiisopropylethylamineHCID 2733179PyBroPHCID 2761473Boc-2-(trifluoromethyl)-L-phenylalanineHCID 578263895-chloro-4-(1-methyl-1H-pyrazol-5-yl)thiophene-2-carboxylic acidHCID 670661172-[(2S)-2-amino-3-cyclohexylpropyl]-1H-isoindole-1,3(2H)-dione

Produkt 1

HCID 578264215-chloro-N-{(1S)-2-cyclohexyl-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamideAusbeute 53,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

To a solution of 5-chloro-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic acid (150 mg, 0.62 mmol) [Prepared in Example 95], N,N-diisopropylethylamine (0.54 ml, 3.10 mmol) and 2-[(2S)-2-amino-3-cyclohexylpropyl]-1H-isoindole-1,3(2H)-dione (200 mg, 0.62 mmol) [Prepared according to the procedure of Preparation 6, except substituting 3-cyclohexyl-N-{[(1,1-dimethylethyl)oxy]carbonyl}-L-alanine (5 g, 18.4 mmol) for N-{[(1,1-dimethylethyl)oxy]carbonyl}-2-(trifluoromethyl)-L-phenylalanine]in DCM at 25° C. was added bromo-tris-pyrrolidino-phosphonium hexafluorophosphate (347 mg, 0.74 mmol) in one portion. The solution stirred at 25° C. for 1 h and was then partitioned between H2O-DCM. The aqueous phase was washed several times with DCM and the combined organic fractions were dried over Na2SO4, concentrated and purified via column chromatography (silica, 45% EtOAc in hexanes) yielding 5-chloro-N-{(1S)-2-cyclohexyl-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide (168 mg, 0.33 mmol, 53% yield) as a clear oil: LCMS (ES) m/e 511, 513 (M, M+2)+.

Aufarbeitung

  1. customaccording to the procedure of Preparation 6
  2. customat 25° C.
  3. customwas then partitioned between H2O-DCM
  4. washThe aqueous phase was washed several times with DCM
  5. dry with materialthe combined organic fractions were dried over Na2SO4
  6. concentrationconcentrated
  7. custompurified via column chromatography (silica, 45% EtOAc in hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-a84078723bac41b4a227984eb6ab2c10
Quelldatensatz
uspto-grants-2012_09
Patentnummer
US08273782B2

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