Sodium Hydroxide → HCID 50923526, compound

HRID 2179806Notes

Reaction equation

HRID 2179806 reaction equation
C([O:4][C@H:5]1[CH2:22][CH2:21][C@@:20]2([CH3:23])[C@@H:7]([CH2:8][CH2:9][C@:10]3([CH3:47])[C@@H:19]2[CH2:18][CH2:17][C@H:16]2[C@@:11]3([CH3:46])[CH2:12][CH2:13][C@@:14]3([C:30](=[O:45])[NH:31][C@@H:32]4[CH2:36][CH2:35][C@H:34]([CH2:37][N:38]5[CH2:43][CH2:42][CH2:41][CH:40]([CH3:44])[CH2:39]5)[CH2:33]4)[CH2:26][CH2:25][C@@H:24]([C:27]([CH3:29])=[CH2:28])[C@@H:15]32)[C:6]1([CH3:49])[CH3:48])(=O)C.[OH-].[Na+]>C1COCC1>[OH:4][C@H:5]1[CH2:22][CH2:21][C@@:20]2([CH3:23])[C@@H:7]([CH2:8][CH2:9][C@:10]3([CH3:47])[C@@H:19]2[CH2:18][CH2:17][C@H:16]2[C@@:11]3([CH3:46])[CH2:12][CH2:13][C@@:14]3([C:30]([NH:31][C@@H:32]4[CH2:36][CH2:35][C@H:34]([CH2:37][N:38]5[CH2:43][CH2:42][CH2:41][CH:40]([CH3:44])[CH2:39]5)[CH2:33]4)=[O:45])[CH2:26][CH2:25][C@@H:24]([C:27]([CH3:29])=[CH2:28])[C@@H:15]32)[C:6]1([CH3:48])[CH3:49]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 50923525HCID 50923525, compound

Product 1

HCID 50923526HCID 50923526, compoundYield 66.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

(1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((1R,3S)-3-((3-methylpiperidin-1-yl)methyl)cyclopentylcarbamoyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl acetate (Example 49, 0.5 g) in MeoH:THF (8:8 ml) and cooled the contents to 0° C. then sodium hydroxide (0.12 g in 4 ml water) was added and stirred for about 6 hours at room temperature. Completion of the reaction (monitored by TLC), the reaction mixture was evaporated under reduced pressure and the residue was taken in water, and extracted with DCM, the organic layer was dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography using 5% methanol in DCM as eluent to furnish the title compound (0.31 g) as a white solid. 1H NMR (300 MHz, CDCl3): 0.57-0.97 (m, 19H); 1.18-1.21 (m, 8H); 1.25-1.41 (m, 12H); 1.49-1.62 (m, 8H); 1.65-1.82 (m, 10H); 1.85-1.98 (m, 4H); 2.56-2.69 (m, 2H); 3.29-3.38 (m, 1H); 3.89-3.90 (m, 1H); 4.25-4.70 (m, 4H); 5.78 (s, 1H); MASS: 635 (100%).

Workup

  1. customCompletion of the reaction (monitored by TLC)
  2. customthe reaction mixture was evaporated under reduced pressure
  3. extractionextracted with DCM
  4. dry with materialthe organic layer was dried over Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-56f2d026c2e449f6a4b38825fd8684bc
Source dataset
uspto-grants-2015_06
Patent number
US09067966B2

Reaction notes

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