PPT1 and neoplasm: For the five-dose screen COMPARE analyses, the highest correlation coefficients achieved for compound 28, from both the common anticancer agent database and the comprehensive database, were 0.934 in relation to the potent antiviral and anticancer agent, Didemnin B [75] which selectively induces apoptosis through dual inhibition of PPT1 and EEF1A1, 0.879 for the antileukemic agent and protein synthesis inhibitor, Bruceantin [76] and 0.430 in relation to the antimitotic/anti-tumour agent Rhizoxin 47 [77,78].