Methanol → (1R*,2R*,4'S*,5S*,6R*)-2',3',4',5'-Tetrahydro-4'-(2-methoxy-5-trifluoromethoxyphenyl)-1-phenyl-6-phenylsulphonylspiro[8-azabicyclo[3.2.1]octane-2,2'-furan]

Participants

Reaction Steps

The mixture of (1R*,2R*,4S*,5S*,6R*)-2′,3′,4′,5′-tetrahydro-4′-(2-hydroxy-5-trifluoromethoxyphenyl)-1-phenyl-6-phenylsulphonylspiro[8-azabicyclo[3.2.1]octane-2,2′-furan] (Example 10; 60 mg, 0.11 mmol), diethyl azodicarboxylate (0.04 ml, 0.25 mmol), triphenylphosphine (68 mg, 0.26 mmol), methanol (0.2 ml) and tetrahydrofuran (2 ml) was stirred at room temperature overnight then concentrated in vacuo and treated with methanol (2 ml) followed by 4M aqueous Na

Provenance & Evidence