... PPSM, ENS Cachan, CNRS, UniverSud, 61 av President Wilson, F-94230 Cachan, France. Chem. Rev. ... Recently more convenient reaction conditions for the last step were proposed by Harrity et al., who replaced chlorine gas by the less dangerous ... 9, Cl, Cl. 10, Cl, O(CH 2 ) 4 OH ...