| spectroscopic characterisation of two polyketide metabolites from cylindrocarpon sp. from driftwood. | two new polyketides, (5r,7r,9r)-7,9-dihydroxy-5-decanolide and (4e,6r,9r)- 6,9-dihydroxydec-4-enoic acid (2), were isolated from rice cultures of cylindrocarpon sp. sy-39 discovered during screening of driftwood at a shonai coast area in yamagata, japan. the structures of 1 and 2 were determined using a variety of spectroscopic methods. compound 2 exhibited moderate antimicrobial activity against staphylococcus aureus nbrc 13276 and aspergillus clavatus f 318a at a concentration of 50 μg per dis ... | 2017 | 28562088 |