The trial report summarise results from testing of three compounds (2 day dosing): 4-ethynyl-anisole, 4-ethynyl-aniline and 4DBA (4-[(1,3-dioxo-2-propyl-2,3-dihydro-1H-isoindol-5-yl)carbonyl]benzoic acid). 4-ethynyl-anisole and 4-ethynyl-aniline are liquid and solid derivatives of acetylene and are substrate analogues (derivatives). Tnese were intially reported in the PGgRc 2012 annual report. We have now tested >30 ehtynyl derivatives.

4DBA is a bebzoyl benzoic acid (BBA) derivtaive. BBA was originally if=dentified under SLMACC, but derivtiased under th PGgRc.