2(3H)-furanone, 3,4-bis(1,3-benzodioxol-5-ylmethyl)dihydro-5-methoxy-, (3R,4R,5S)- 3,4-Bis-benzo[1,3]dioxol-5-ylmethyl-5-methoxy-dihydro-furan-2-one Aristelegin-A InChI=1/C21H20O7/c1-23-21-15(7-13-3-5-17-19(9-13)27-11-25-17)14(20(22)28-21)6-12-2-4-16-18(8-12)26-10-24-16/h2-5,8-9,14-15,21H,6-7,10-11H2,1H3/t14-,15-,21+/m1/s rel-(3R,4R,5S)-3,4-bis(1,3-benzodioxol-5-ylmethyl)-5-methoxydihydrofuran-2(3H)-one