Pharmaceutical Synthesis DEA (diethanolamine)DMA (dimethylamine)MEA (monoethanolamine)MMA (monomethylamine)OTSA (ortho-toluene sulfonamide)PTSA (para-toluene sulfonamide)PTS Acid (para-toluene sulfonic acid)PIP68 (piperazine 68%)PIP100 (piperazine anhydrous)PTSC (para-toluene sulfonylchloride)