Three simple carboxamides incorporating the phenethylamine moiety have been
isolated from strain XR-NC of a symbiotic bacterium Xenorhabdus nematophil
us. Their structures were identified by spectroscopic data and synthesis. T
he compounds exhibited significant cytotoxicities against human cancer-cell
line, viz. the gastric adenocarcinoma, colon adenocarcinoma and lung adeno
carcinoma.