Suwanborirux K, Chang C J, Spjut R W, Cassady J M
Department of Medicinal Chemistry, School of Pharmacy and Pharmacal Sciences, Purdue University, West Lafayette, Indiana 47907.
Experientia. 1990 Jan 15;46(1):117-20. doi: 10.1007/BF01955435.
Guided by cytotoxicity, ansamitocin P-3, a maytansinoid, was isolated in very low yield from two members of the moss family Thuidiaceae, Claopodium crispifolium (Hook.) Ren. & Card. and Anomodon attenuatus (Hedw.) Hueb. Ansamitocin P-3 showed potent cytotoxicity against the human solid tumor cell lines A-549, HT-29. A possible basis for the occurrence of this compound in mosses is discussed.