Sodium Hydroxide → 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1,1-dioxidotetrahydrothiophen-3-yl)amino)ethyl)amino)-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-9-yl)benzoic acid

HRID 85715Notes

Reaction equation

HRID 85715 reaction equation
[O:1]=[S:2]1(=[O:50])[CH2:6][CH2:5][CH:4]([NH:7][CH2:8][CH2:9][NH:10][C@:11]23[CH2:46][CH2:45][C@@H:44]([C:47]([CH3:49])=[CH2:48])[C@@H:12]2[C@@H:13]2[C@@:26]([CH3:29])([CH2:27][CH2:28]3)[C@@:25]3([CH3:30])[C@@H:16]([C@:17]4([CH3:43])[C@@H:22]([CH2:23][CH2:24]3)[C:21]([CH3:32])([CH3:31])[C:20]([C:33]3[CH:42]=[CH:41][C:36]([C:37]([O:39]C)=[O:38])=[CH:35][CH:34]=3)=[CH:19][CH2:18]4)[CH2:15][CH2:14]2)[CH2:3]1.[OH-].[Na+]>O1CCOCC1>[O:1]=[S:2]1(=[O:50])[CH2:6][CH2:5][CH:4]([NH:7][CH2:8][CH2:9][NH:10][C@:11]23[CH2:46][CH2:45][C@@H:44]([C:47]([CH3:49])=[CH2:48])[C@@H:12]2[C@@H:13]2[C@@:26]([CH3:29])([CH2:27][CH2:28]3)[C@@:25]3([CH3:30])[C@@H:16]([C@:17]4([CH3:43])[C@@H:22]([CH2:23][CH2:24]3)[C:21]([CH3:32])([CH3:31])[C:20]([C:33]3[CH:34]=[CH:35][C:36]([C:37]([OH:39])=[O:38])=[CH:41][CH:42]=3)=[CH:19][CH2:18]4)[CH2:15][CH2:14]2)[CH2:3]1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 68358224HCID 68358224, compound

Product 1

HCID 683581604-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1,1-dioxidotetrahydrothiophen-3-yl)amino)ethyl)amino)-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-9-yl)benzoic acidYield 66%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
78 °C

Procedure

A mixture of methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1,1-dioxidotetrahydrothiophen-3-yl)amino)ethyl)amino)-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-9-yl)benzoate (40 mg, 0.057 mmol) and sodium hydroxide (0.567 mL, 0.567 mmol) in dioxane (1 mL) was heated up at 78° C. for 3 hours. The reaction mixture was cooled to room temperature, filtered and the clear solution was purified by HPLC to provide the title compound as a white solid (26 mg, 63%). LCMS: m/e 691.46 (M+H)+, 2.24 min (method 11). 1H NMR (500 MHz, Acetic) δ 8.04 (d, J=8.2 Hz, 2H), 7.30 (d, J=8.2 Hz, 2H), 5.37 (d, J=4.9 Hz, 1H), 4.87 (s, 1H), 4.75 (s, 1H), 4.06 (quin, J=7.7 Hz, 1H), 3.67-3.45 (m, 4H), 3.44-3.34 (m, 1H), 3.33-3.11 (m, 2H), 2.92-2.80 (m, 1H), 2.77-2.59 (m, 1H), 2.42-2.29 (m, 1H), 2.26-1.02 (m, 23H), 1.77 (s, 3H), 1.22 (s, 3H), 1.13 (s, 3H), 1.10 (s, 3H), 1.02 (s, 3H), 1.00 (s, 3H).

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationfiltered
  3. customthe clear solution was purified by HPLC

Sources & evidence

ORD record
ord-09ebaea76ab74c5e881074f98b1e8a00
Source dataset
uspto-grants-2014_09
Patent number
US08846647B2

Reaction notes

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