Pyridine → 2-((10S,13S,17R)-17-hydroxy-10,13-dimethyl-3-oxo-2,3,6,7,8,10,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate

HRID 2194366Notes

Reaction equation

HRID 2194366 reaction equation
[CH3:1][C:2]([O:4][CH2:5][C:6]([C@:8]1([OH:29])[C@@:12]2([CH3:28])[CH2:13][C@H:14](O)[C@@H:15]3[C@:25]4([CH3:26])[C:19](=[CH:20][C:21]([CH2:23][CH2:24]4)=[O:22])[CH2:18][CH2:17][C@H:16]3[C@@H:11]2[CH2:10][CH2:9]1)=[O:7])=[O:3].CN(C)C=O.N1C=CC=CC=1.CS(Cl)(=O)=O>CO>[C:2]([O:4][CH2:5][C:6]([C@:8]1([OH:29])[C@:12]2([CH3:28])[CH:11]([CH:16]3[C:15](=[CH:14][CH2:13]2)[C@:25]2([CH3:26])[C:19](=[CH:20][C:21](=[O:22])[CH2:23][CH2:24]2)[CH2:18][CH2:17]3)[CH2:10][CH2:9]1)=[O:7])(=[O:3])[CH3:1]

Participants

6

Reactant 4

HCID 1049PyridineHCID 5744Hydrocortisone AcetateHCID 6228DimethylformamideHCID 31297Methanesulfonyl chloride

Product 1

HCID 130376572-((10S,13S,17R)-17-hydroxy-10,13-dimethyl-3-oxo-2,3,6,7,8,10,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
82.5 °C

Procedure

The title compound can be synthesized from hydrocortisone acetate according to the procedure disclosed in EP 0097328.405 g (1 mol) of hydrocortisone acetate is added to a mixture of 2 liters of N,N-dimethylformamide and 350 ml of pyridine, and with stifling at room temperature, 260 g of methanesulfonyl chloride is added. The reaction mixture is heated, maintained at 80 to 85° C. for 1 hour, and then cooled to room temperature. Methanol (7 liters) is added. The precipitated crystals are separated by filtration, washed with methanol and water, and dried under reduced pressure to give the title compound.

Workup

  1. customwith stifling at room temperature
  2. temperatureThe reaction mixture is heated
  3. temperaturecooled to room temperature
  4. customThe precipitated crystals are separated by filtration
  5. washwashed with methanol and water
  6. customdried under reduced pressure

Sources & evidence

ORD record
ord-d1def65c7d8e47c298d90a3467d86c1e
Source dataset
uspto-grants-2012_12
Patent number
US08334279B2

Reaction notes

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