Trifluoroacetic acid → HCID 71596818, Verbindung

HRID 405065Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 405065
C([O:5][C:6]([C:8]1[CH:13]=[CH:12][C:11]([C:14]2[C:15]([CH3:59])([CH3:58])[C@H:16]3[C@:29]([CH3:32])([CH2:30][CH:31]=2)[C@@H:28]2[C@:19]([CH3:57])([C@@:20]4([CH3:56])[C@H:25]([CH2:26][CH2:27]2)[C@H:24]2[C@H:33]([C:36]([CH3:38])=[CH2:37])[CH2:34][CH2:35][C@:23]2([CH2:39][NH:40][CH2:41][CH2:42][N:43]2[CH2:48][CH2:47][N:46](C(OC(C)(C)C)=O)[CH2:45][CH2:44]2)[CH2:22][CH2:21]4)[CH2:18][CH2:17]3)=[CH:10][CH:9]=1)=[O:7])(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH3:56][C@:20]12[C@@:19]3([CH3:57])[C@@H:28]([C@:29]4([CH3:32])[C@@H:16]([CH2:17][CH2:18]3)[C:15]([CH3:58])([CH3:59])[C:14]([C:11]3[CH:12]=[CH:13][C:8]([C:6]([OH:7])=[O:5])=[CH:9][CH:10]=3)=[CH:31][CH2:30]4)[CH2:27][CH2:26][C@@H:25]1[C@H:24]1[C@H:33]([C:36]([CH3:38])=[CH2:37])[CH2:34][CH2:35][C@:23]1([CH2:39][NH:40][CH2:41][CH2:42][N:43]1[CH2:44][CH2:45][NH:46][CH2:47][CH2:48]1)[CH2:22][CH2:21]2

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 86676406tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate

Produkt 1

HCID 71596818HCID 71596818, VerbindungAusbeute 16,43 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate (136 mg, 0.167 mmol) in DCM (1 ml) was added TFA (0.4 ml, 5.19 mmol). The mixture was stirred at rt for 5 h then was concentrated under reduced pressure. The residue was dissolved in dioxane and MeOH and was purified by prep. HPLC. The fractions containing the expected product were combined and concentrated under reduced pressure. HPLC showed some impurities were still present, so the reaction was repurified by prep. HPLC. The fractions were concentrated under reduced pressure to give the title compound as a white solid (18 mg, 0.027 mmol, 16.43% yield). LCMS: m/e 656.6 (M+H)+, 2.24 min (method 6). 1H NMR (500 MHz, Acetic) δ ppm 8.03 (d, J=8.24 Hz, 2H),7.30 (d, J=8.24 Hz, 2H), 5.37 (d, J=4.58 Hz, 1H), 4.79 (s, 1H), 4.68 (s, 1H), 3.50-3.67 (m, 6H), 3.40 (d, J=12.82 Hz, 1H), 3.22-3.29 (m, 6H), 2.99 (d, J=13.12 Hz, 1H), 2.49-2.58 (m, 1H), 1.76 (s, 3H), 1.19 (s, 3H), 1.16-2.23 (m, 22H), 1.10 (s, 3H), 1.08 (s, 3H), 1.02 (s, 3H), 1.00 (s, 3H).

Aufarbeitung

  1. concentrationthen was concentrated under reduced pressure
  2. dissolutionThe residue was dissolved in dioxane
  3. customMeOH and was purified by prep
  4. additionThe fractions containing the expected product
  5. concentrationconcentrated under reduced pressure
  6. customwas repurified by prep
  7. concentrationThe fractions were concentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-516667716d1d4258bcde7172e67bc494
Quelldatensatz
uspto-grants-2014_06
Patentnummer
US08748415B2

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