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 58015Notes

Reaction equation

HRID 58015 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-a25ee7f6fb8a490a9993942bd0b23326
Source dataset
uspto-grants-2016_09
Patent number
US09434758B2

Reaction notes

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