1: With N-ethyl-N,N-diisopropylamine; trichlorophosphate in dichloromethane
T=0°C; Inert atmosphere;
2: With tetrabutyl-ammonium chloride in dichloromethane
T=40°C; 15 h; Inert atmosphere;
Blackburn, Thomas P.; Cox, Barry; Guildford, Allen J.; Count, David J. Le; Middlemiss, Derek N.; et al.
Journal of Medicinal Chemistry, 1987 , vol. 30, # 12 p. 2252 - 2259