Sodium Hydroxide → HCID 50923385, compound

HRID 2179803Notes

Reaction equation

HRID 2179803 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([CH3:48])[C@@H:19]2[CH2:18][CH2:17][C@H:16]2[C@@:11]3([CH3:47])[CH2:12][CH2:13][C@@:14]3([C:30](=[O:46])[NH:31][C@@H:32]4[CH2:35][C@H:34]([C:36]([N:38]5[CH2:43][CH2:42][CH2:41][CH2:40][CH2:39]5)=[O:37])[C:33]4([CH3:45])[CH3:44])[CH2:26][CH2:25][C@@H:24]([C:27]([CH3:29])=[CH2:28])[C@@H:15]32)[C:6]1([CH3:50])[CH3:49])(=O)C.[OH-].[Na+]>CO.C1COCC1>[CH3:44][C:33]1([CH3:45])[C@@H:34]([C:36]([N:38]2[CH2:39][CH2:40][CH2:41][CH2:42][CH2:43]2)=[O:37])[CH2:35][C@H:32]1[NH:31][C:30]([C@:14]12[CH2:26][CH2:25][C@@H:24]([C:27]([CH3:29])=[CH2:28])[C@@H:15]1[C@@H:16]1[C@@:11]([CH3:47])([CH2:12][CH2:13]2)[C@@:10]2([CH3:48])[C@@H:19]([C@:20]3([CH3:23])[C@@H:7]([CH2:8][CH2:9]2)[C:6]([CH3:49])([CH3:50])[C@@H:5]([OH:4])[CH2:22][CH2:21]3)[CH2:18][CH2:17]1)=[O:46]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 50923384HCID 50923384, compound

Product 1

HCID 50923385HCID 50923385, compoundYield 74.6%

Reagents, catalysts & solvents 1

HCID 21899815MeOH tetrahydrofuranSolvent

Procedure

To a stirred solution of (1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-((1R,3S)-2,2-dimethyl-3-(piperidine-1-carbonyl)cyclobutylcarbamoyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl acetate (Example 46, 0.400 g, 0.579 mmol) in MeOH:THF (2:1) (30 ml) 2N NaOH (10 ml) was added at 0° C. and allowed to stir at room temperature for about 16 hours. After completion of the reaction (monitored by TLC), the volatile was evaporated and the aqueous layer was extracted with ethyl acetate and the organic layer was washed with water, brine and dried over Na2SO4 then the solvent was evaporated and the resulting crude stirred in hexane and the resulting solid was obtained which was filtered and dried under vacuum to afford the title compound. Wt: 0.280 g; Yield: 74.6%; 1H NMR (300 MHz, CDCl3): δ 5.86 (d, 1H, J=8.1 Hz), 4.72 (s, 1H), 4.57 (s, 1H), 4.18-4.06 (m, 1H), 3.78-3.68 (m, 1H), 3.52-3.30 (m, 3H), 3.23-3.08 (m, 2H), 2.92-2.86 (m, 1H), 2.52-2.20 (m, 3H), 2.01-1.88 (m, 2H), 1.80-1.12 (m, 33H), 0.96, 0.93, 0.87, 0.81, 0.74 (s, 18H); Mass: [M+1]+ 649 (5%), [M+Na]+ 671 (100%); IR (KBr, cm−1): 3353, 2937, 2858, 1635, 1618, 1533, 1459, 1390, 1262, 1250, 1148, 1048, 1033, 1020, 983, 883; M.R: 177° C.-188.7° C.; HPLC: 95.72%.

Workup

  1. customAfter completion of the reaction (monitored by TLC)
  2. customthe volatile was evaporated
  3. extractionthe aqueous layer was extracted with ethyl acetate
  4. washthe organic layer was washed with water, brine
  5. dry with materialdried over Na2SO4
  6. customthe solvent was evaporated
  7. stirringthe resulting crude stirred in hexane
  8. customthe resulting solid was obtained which
  9. filtrationwas filtered
  10. customdried under vacuum

Sources & evidence

ORD record
ord-94f3fe23aa174d5183dd77ccf172f34a
Source dataset
uspto-grants-2015_06
Patent number
US09067966B2

Reaction notes

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