Lithium Hydroxide → 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-(2-(1-methyl-1H-imidazol-2-ylamino)ethylamino)-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-9-yl)benzoic acid

HRID 85680

Reaktionsgleichung

Reaktionsgleichung von HRID 85680
[CH3:1][C@:2]12[C@@:19]3([CH3:20])[C@@H:10]([C@:11]4([CH3:32])[C@@H:16]([CH2:17][CH2:18]3)[C:15]([CH3:22])([CH3:21])[C:14]([C:23]3[CH:31]=[CH:30][C:26]([C:27]([OH:29])=[O:28])=[CH:25][CH:24]=3)=[CH:13][CH2:12]4)[CH2:9][CH2:8][C@@H:7]1[C@H:6]1[C@H:33]([C:36]([CH3:38])=[CH2:37])[CH2:34][CH2:35][C@:5]1([NH:39][CH2:40][CH2:41][NH:42][C:43]1C=NC=CC=1)[CH2:4][CH2:3]2.Br[C:50]1[N:51](C)[CH:52]=[CH:53][N:54]=1.[Li+].[OH-].C(O)(C(F)(F)F)=O>CO.O>[CH3:1][C@:2]12[C@@:19]3([CH3:20])[C@@H:10]([C@:11]4([CH3:32])[C@@H:16]([CH2:17][CH2:18]3)[C:15]([CH3:21])([CH3:22])[C:14]([C:23]3[CH:31]=[CH:30][C:26]([C:27]([OH:29])=[O:28])=[CH:25][CH:24]=3)=[CH:13][CH2:12]4)[CH2:9][CH2:8][C@@H:7]1[C@H:6]1[C@H:33]([C:36]([CH3:38])=[CH2:37])[CH2:34][CH2:35][C@:5]1([NH:39][CH2:40][CH2:41][NH:42][C:43]1[N:51]([CH3:50])[CH:52]=[CH:53][N:54]=1)[CH2:4][CH2:3]2

Komponenten

7

Edukt 4

HCID 3939Lithium HydroxideHCID 6422Trifluoroacetic acidHCID 27732622-Bromo-1-methyl-1H-imidazoleHCID 683582194-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-3a-(2-(pyridin-3-ylamino)ethylamino)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoic acid

Produkt 1

HCID 683581134-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-(2-(1-methyl-1H-imidazol-2-ylamino)ethylamino)-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-9-yl)benzoic acid

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

The title compound was prepared following a similar procedure as described for the synthesis of 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-3a-(2-(pyridin-3-ylamino)ethylamino)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoic acid, except 2-bromo-1-methyl-1H-imidazole (0.015 g, 8.88 μL, 0.091 mmol) was used in place of 3-bromopyridine. Also, addition of LiOH, water and methanol were unnecessary for this example, as the ester hydrolysis occurred spontaneously during the course of the amination reaction. The product was isolated after reverse phase preparative HPLC purification using Prep HPLC Method 8 as a beige solid (38.1 mg, 51.5% yield) bis TFA salt. LCMS: m/e 653.4 (M+H)+, 3.88 min (method 16). 1H NMR (500 MHz, 1:1 mixture of CDCl3 and MeOD, MeOD lock) δ ppm 7.91 (d, J=8.2 Hz, 2H), 7.19 (d, J=7.9 Hz, 2H), 6.86 (s, 1H), 6.83-6.79 (m, 1H), 5.28 (d, J=5.5 Hz, 1H), 4.84 (s, 1H), 4.73 (s, 1H), 4.71 (br. s., 1H), 3.98-3.82 (m, 2H), 3.58 (s, 3H), 3.25 (br. s., 1H), 2.89-2.78 (m, 1H), 2.18-2.07 (m, 3H), 2.05-1.92 (m, 3H), 1.90-1.79 (m, 1H), 1.72 (s, 4H), 1.69 (br. s., 1H), 1.62-1.54 (m, 3H), 1.53-1.47 (m, 3H), 1.46-1.34 (m, 5H), 1.28-1.20 (m, 2H), 1.18-1.12 (m, 1H), 1.11 (s, 3H), 1.09-1.03 (m, 4H), 1.01 (s, 3H), 0.93 (br. s., 3H), 0.93 (br. s., 3H).

Aufarbeitung

  1. customoccurred spontaneously during the course of the amination reaction
  2. customThe product was isolated
  3. customafter reverse phase preparative HPLC purification

Quellen und Nachweise

ORD-Eintrag
ord-6cad7a1dcb04464688da14b1e661453a
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08846647B2

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