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

HRID 1845466
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1845466
[CH3:1][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>[CH:40]1([CH2:39][C@H:26]([NH:25][C:7]([C:5]2[S:6][C:2]([CH3:1])=[C:3]([C:10]3[N:14]([CH3:15])[N:13]=[CH:12][CH:11]=3)[CH:4]=2)=[O:9])[CH2:27][N:28]2[C:29](=[O:38])[C:30]3[C:35](=[CH:34][CH:33]=[CH:32][CH:31]=3)[C:36]2=[O:37])[CH2:45][CH2:44][CH2:43][CH2:42][CH2:41]1
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Komponenten

7

Edukt 5

HCID 81531DiisopropylethylamineHCID 2733179PyBroPHCID 2761473Boc-2-(trifluoromethyl)-L-phenylalanineHCID 578265125-methyl-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic acidHCID 670661172-[(2S)-2-amino-3-cyclohexylpropyl]-1H-isoindole-1,3(2H)-dione

Produkt 1

HCID 57826546
N-{(1S)-2-cyclohexyl-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-5-methyl-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide
Ausbeute 94 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

To a solution of 5-methyl-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic acid (138 mg, 0.62 mmol), N,N-diisopropylethylamine (0.541 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, 50% EtOAc in hexanes) yielding N-{(1S)-2-cyclohexyl-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-5-methyl-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide (285 mg, 0.581 mmol, 94% yield) as a white foam: LCMS (ES) m/e 491, 493 (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, 50% EtOAc in hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-0ad11e2a13574175a1c5883a7a312847
Quelldatensatz
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08946278B2

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