The terms DMF and DMSO designate dimethyl formamide and dimethylsulfoxide, respectively. All chromatography is performed using SiO2 as support. EXAMPLE 1 Preparation of 3-(Phenylthio)-1H-pyrrolo[2,3-b]pyridine A solution of methyl phenyl sulfoxide (8.33 g, 59.4 mmol) in CH2Cl2 is chilled ...