Sodium Hydroxide → 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((2-(piperazin-1-yl)ethyl)amino)-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 85736Notes

Reaction equation

HRID 85736 reaction equation
[CH3:1][C@:2]12[C@@:19]3([CH3:20])[C@@H:10]([C@:11]4([CH3:33])[C@@H:16]([CH2:17][CH2:18]3)[C:15]([CH3:22])([CH3:21])[C:14]([C:23]3[CH:32]=[CH:31][C:26]([C:27]([O:29]C)=[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:34]([C:37]([CH3:39])=[CH2:38])[CH2:35][CH2:36][C@:5]1([NH:40][CH2:41][CH2:42][N:43]1[CH2:48][CH2:47][NH:46][CH2:45][CH2:44]1)[CH2:4][CH2:3]2.[OH-].[Na+]>O1CCOCC1>[CH3:1][C@:2]12[C@@:19]3([CH3:20])[C@@H:10]([C@:11]4([CH3:33])[C@@H:16]([CH2:17][CH2:18]3)[C:15]([CH3:21])([CH3:22])[C:14]([C:23]3[CH:32]=[CH:31][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:34]([C:37]([CH3:39])=[CH2:38])[CH2:35][CH2:36][C@:5]1([NH:40][CH2:41][CH2:42][N:43]1[CH2:44][CH2:45][NH:46][CH2:47][CH2:48]1)[CH2:4][CH2:3]2

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 86676640methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((2-(piperazin-1-yl)ethyl)amino)-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

Product 1

HCID 866766394-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((2-(piperazin-1-yl)ethyl)amino)-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 32.6%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((2-(piperazin-1-yl)ethyl)amino)-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 (7.5 mg, 0.011 mmol) and sodium hydroxide (0.057 mL, 0.057 mmol) in dioxane (1 mL) was heated up at 80° C. for 3 hours. The reaction mixture was filtered and the clear solution was purified by HPLC to provide the desired product as white solid (2.3 mg, 31%). LCMS: m/e 642.62 (M+H)+, 2.29 min (method 11). 1H NMR (400 MHz, Acetic) δ 8.00 (d, J=8.5 Hz, 2H), 7.26 (d, J=8.5 Hz, 2H), 5.34 (d, J=4.8 Hz, 1H), 4.80 (s, 1H), 4.70 (s, 1H), 3.59-3.28 (m, 6H), 3.25-3.11 (m, 1H), 3.09-2.73 (m, 6H), 2.31-1.15 (m, 22H), 1.73 (s, 3H), 1.26 (s, 3H), 1.11 (s, 3H), 1.08 (s, 3H), 0.99 (s, 3H), 0.97 (s, 3H).

Workup

  1. filtrationThe reaction mixture was filtered
  2. customthe clear solution was purified by HPLC

Sources & evidence

ORD record
ord-75900790659a41a4a5e3e21cf7930d4a
Source dataset
uspto-grants-2014_09
Patent number
US08846647B2

Reaction notes

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