A new naphthopyranone from the sponge‐associated fungus Penicillium sp. XWS02F62.

SCS-KFD08.[10] The main difference was that a hydroxyl group in penicitor A replaced by a methoxyl group ( I i SB H/C sb 3.87/56.0) attached at C-7 ( I i SB C sb 161.5) in B 1 b ,[11] which were confirmed by HMBC correlation (Figure) of H SB 3 sb -14/C-7, and the presence of an additional CH SB 2 sb unit in deduced molecular formula of B 1 b . Crystallographic data of compound B 1 b were measured on a Rigaku XtaLAB PRO single-crystal diffractometer using Cu K I i radiation ( I i = 1.54184 Å). The ECD spectra of different conformers were generated using the program SpecDis 1.6 (University of Würzburg) and Prism 5.0 (GraphPad Software Inc.) with a half-bandwidth of 0.3 eV, according to the Boltzmann-calculated contribution of each conformer after UV correction of +10 nm. Cytotoxicity against MDA-MB-231, C4-2B, MGC803, 143B, and A549 cell lines of compounds 1-10.Figure S3. 1H NMR spectrum of 7-O-methylpenicitor A (1) (DMSO-d6, 700 MHz)Figure S4. 13C NMR and DEPT spectra of 7-O-methylpenicitor A (1) (DMSO-d6, 700 MHz)Figure S5. [Extracted from the article]