Synthesis, stereochemical assignment, and bioactivity of the Penicillium metabolites penicillenols B1 and B2
摘要:
The Penicillium metabolites penicillenols B-1 and B-2 were synthesised for the first time by elimination of a mesylated penicillenol A precursor as obtained from an L-threonine derived tetramic acid. The (Z,S)-and (E,S)-configured diastereomers were identical to the natural compounds as to NMR spectra and optical rotations. Both isomers showed antiproliferative effects against cancer and endothelial cell lines and penicillenol B-1 was also notably antibiotic against Staphylococcus aureus. (C) 2015 Elsevier Ltd. All rights reserved.
The Penicillium metabolites penicillenols B-1 and B-2 were synthesised for the first time by elimination of a mesylated penicillenol A precursor as obtained from an L-threonine derived tetramic acid. The (Z,S)-and (E,S)-configured diastereomers were identical to the natural compounds as to NMR spectra and optical rotations. Both isomers showed antiproliferative effects against cancer and endothelial cell lines and penicillenol B-1 was also notably antibiotic against Staphylococcus aureus. (C) 2015 Elsevier Ltd. All rights reserved.