@article{oai:oacis.repo.nii.ac.jp:00002386,
 author = {Kim, Youngju and Ogura, Hiromu and Akasaka, Kazuaki and Oikawa, Tsutomu and Matsuura, Nobuyasu and Imada, Chiaki and Yasuda, Hisato and Igarashi, Yasuhiro},
 issue = {7},
 journal = {Marine Drugs},
 month = {Jul},
 note = {One new α-pyrone (nocapyrone R (1)), and three known γ-pyrones (nocapyrones B, H and L (2–4)) were isolated from the culture extract of a Nocardiopsis strain collected from marine sediment. 
Structures of these compounds were determined on the basis of spectroscopic data including NMR and MS. γ-Pyrones 2–4 were found to induce adiponectin production in murine ST-13 preadipocyte cells but the α-pyrone 1 had no activity.
The absolute configuration of the anteiso-methyl branching in 4 was determined by HPLC comparison of a degraded product of 4 with standard samples as a 2:3 enantiomeric mixture of (R)- and (S)-isomers.},
 pages = {4110--4125},
 title = {Nocapyrones: α- and γ-Pyrones from a Marine-Derived Nocardiopsis sp.},
 volume = {12},
 year = {2014}
}