Jp. Yeu et al., An expedient synthesis of 1-[3-(dimethylamino)propyl]-5-methyl-3-phenyl-1H-indazole (FS-32) - An antidepressant, SYNTHESIS-S, (12), 2001, pp. 1775-1777
Intramolecular 1,3-dipolar cycloaddition of functionalized sydnone leading
to the synthesis of 1-[3-(dimethylamino)propyl]-5-methyl-3-phenyl-1H-indazo
le (FS-32), an antidepressant drug candidate, is described.