2,7-(Epoxy[1,11,13]pentadecatrienoimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone, 21-(acetyloxy)-17-(formyloxy)-5,19-dihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, (2S,16S,17S,18S,19R,20R,21S,22R,23S)- 51757-10-9 AIDS-014440 AIDS014440 NSC239375