Potassium Iodide → (S)-benzyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1S,45)-2,2-dioxido-2-thia-5-azabicyclo[2.2.1]heptan-5-yl)ethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)cyclohex-3-enecarboxylate

Participants

Reaction Conditions

Reaction Steps

A mixture of (S)-benzyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-amino-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)cyclohex-3-enecarboxylate (10 mg, 0.016 mmol), (1S,4S)-5-(2-chloroethyl)-2-thia-5-azabicyclo[2.2.1]heptane 2,2-dioxide (3.36 mg, 0.016 mmol), potassium phosphate (17.01 mg, 0.080 mmol) and potassium iodide (5.32 mg, 0.032 mmol) in acetonitrile (1 mL) was heated up at 120° C. for 16 hours. The reaction mixture was then filtered and purified by HPLC to provide the desired product (5 mg, 39% yield) as a white solid. LCMS: m/e 797.8 (M+H)+, 2.31 min (method 5).

Provenance & Evidence