Acetic Acid → HCID 68658794, compound

Participants

Reaction Steps

Palladium hydroxide on carbon (10.6 mg, 0.015 mmol) and acetic acid (17 μl, 0.297 mmol) were added to a stirred solution of (1S,4aR,6aS,7R,8R,10aR,10bR,12aR,14R,15R)-15-[[(2R)-2-amino-2,3,3-trimethylbutyl]oxy]-14-[5-(4-cyanophenyl)-1H-1,2,4-triazol-1-yl]-8-[(1R)-1,2-dimethylpropyl]-1,6,6a,7,8,9,10,10a,10b,11,12,12a-dodecahydro-1,6a,8,10a-tetramethyl-4H-1,4a-propano-2H-phenanthro[1,2-c]pyran-7-carboxylic acid (Example 168, 52.5 mg, 0.060 mmol) in methanol (3.0 ml). The reaction mixture was degassed (3×) and purged with hydrogen before being placed under a hydrogen balloon. After 6 hours, the hydrogen balloon was removed. The reaction mixture was degassed (2×), diluted with methanol, and filtered through a pad of Celite. The filtrate was evaporated under reduced pressure to give a colorless residue. The residue was dissolved in methanol and purified using a single HPLC run on a 30×150 mm Sunfire Prep C18 OBD 10 μm column by eluting with acetonitrile/water+0.1% TFA. The total flow rate was 20 ml/min and the HPLC method employed a 17 minute 20%-100% acetonitrile/water gradient followed by a 2 minute acetonitrile flush. The product fractions were combined, the solvent was evaporated under reduced pressure, and the residue was lyophilized from ethanol and benzene to give the title compound (35.4 mg) as a white solid.

Provenance & Evidence