Synthesis of Cyclopropyl-and Cyclobutylpiperidines: Advanced Building Blocks for Drug Discovery. -A library of the title piperidines is obtained by Wittig reactions starting from readily available materials. -(VYZIR, I. I.; IMINOV, R. T.; TVERDOKHLEBOV*, A.; TOLMACHEV, A. A.; SHCHERBATIUK, A. V.; MYKHAILIUK, P. K.; BIITSEVA, A. V.; Synthesis 47 (2015) 24, 3963-3971, http://dx.doi.org/10.1055/s-0035-1560199 ; Enamine Ltd., Kiev 02094, Ukraine; Eng.) -Toeppel 19-136