Sodium Methoxide → HCID 59271745, compound

HRID 2194372Notes

Reaction equation

HRID 2194372 reaction equation
[OH:1][CH2:2][C:3]([C:5]1([CH3:26])[C:21]2([CH3:22])[CH:8]([CH:9]3[C:18](=[CH:19][CH2:20]2)[C:17]2([CH3:23])[C:12](=[CH:13][C:14](=[O:24])[CH2:15][CH2:16]2)[CH2:11][CH2:10]3)[CH2:7][CH:6]1[CH3:25])=[O:4].C(OCC(=O)[C@]1(C)[C@]2(C)C(C3C(=CC2)[C@]2(C)C(=CC(=O)CC2)CC3)C[C@H]1C)(=O)C.C[O-].[Na+]>CO>[OH:1][CH2:2][C:3]([C@:5]1([CH3:26])[C@:21]2([CH3:22])[CH:8]([CH:9]3[C:18](=[CH:19][CH2:20]2)[C@:17]2([CH3:23])[C:12](=[CH:13][C:14](=[O:24])[CH2:15][CH2:16]2)[CH2:11][CH2:10]3)[CH2:7][C@H:6]1[CH3:25])=[O:4]

Participants

5

Reactant 3

HCID 10942334Sodium MethoxideHCID 59271735HCID 59271735, compoundHCID 72266819HCID 72266819, compound

Product 1

HCID 59271745HCID 59271745, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

10S,13S,16R,17S)-17-(2-hydroxyacetyl)-10,13,16,17-tetramethyl-6,7,8,10,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one: 2-oxo-2-((10S,13S,16R,17S)-10,13,16,17-tetramethyl-3-oxo-2,3,6,7,8,10,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethyl acetate (144 g) is stirred in 1500 ml methanol and treated with sodium methoxide (25%, 5 ml) for 30 minutes. The mixture is partitioned between methylene chloride and sodium bicarbonate. The organic phase is separated and washed with sodium bicarbonate, dried over sodium sulfate, and concentrated to give the title compound.

Workup

  1. customThe mixture is partitioned between methylene chloride and sodium bicarbonate
  2. customThe organic phase is separated
  3. washwashed with sodium bicarbonate
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-b82ea902442d4e738c7c5ee771ee8843
Source dataset
uspto-grants-2012_12
Patent number
US08334279B2

Reaction notes

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