Mg Hept、MgBr (SET) gbR H Hept、MgBt He N ⊙ Hept Hept 6-c1 Acety lsalicylsaure aus salicylsaure CO,H H2SO OAC 6-C1Hept Br Mg (SET) Hept MgBr Hept MgBr O N N Hept O H MgBr NH Hept O H MgBr H Hept O - HN 6-C1 Acetylsalicylsäure aus Salicylsäure CO2H OH CO2H OAc O O O H2SO4 6-C1