Triethylamine → HCID 59312599, compound

Participants

Reaction Steps

To a solution of (1S,4aR,6aS,7R,8R,10aR,10bR,12aR,14R,15R)-15-[[(2R)-2-amino-2,3,3-trimethylbutyl]oxy]-8-[(1R)-1,2-dimethylpropyl]-14-[5-(4-pyridinyl)-1H-1,2,4-triazol-1-yl]-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 173, 20 mg, 0.027 mmol) and triethylamine (0.015 mL, 0.11 mmol) in dichloroethane (0.27 mL) was added trichloroacetyl isocyanate (0.004 mL, 0.032 mmoL). The solution was stirred at room temperature for 70 min and then evaporated to dryness. Methanol (0.5 mL) was added to the residue followed by solid potassium carbonate (14.6 mg, 0.11 mmol and the mixture was stirred at room temperature. After 55 min, water (0.1 mL) was added giving a clear solution. The solution was stirred at room temperature for 1 hour and then stored at 5° C. for 64 hours. The solution was evaporated and the residue purified by reverse phase HPLC using a 19×150 mm Sunfire Preparative C18 OBD column (elution with MeCN/water+0.05% TFA). Fractions containing the product were evaporated and freeze-dried from a mixture of ethanol and benzene to give the title compound (not a salt form) as a white solid.

Provenance & Evidence