CORDIACHROMES FROM AUXEMMA ONCOCALYX

Further cordiachromes, rel-10 alpha, 11 beta-epoxy-11 alpha-ethoxy-8 a lpha-hydroxy-2-methoxy-8a beta-methyl-5,6,7,8,8a,9, 10a beta-octahydro -1,4-anthracendione, methoxy-9-methyl-7,8-dihydro-1,4-phenanthrendione , rel-8 alpha,11 alpha; 9 alpha,11 alpha-diepoxy-1,4-dihydroxy-2-metho xy-8a beta-methyl-5,6,7,8,8a,9,10,10a beta-octahydro-10-anthracenone, rel-9 alpha,11 alpha-epoxy-1,4,8 alpha-trihydroxy-2-methoxy-8a beta-me thyl-5,6,7,8,8a,10,10a beta-octahydro-10-anthracenone, rel-2 ''-methox y-7 ''-methyl-1 '',4 '' naphtalendione-(6 '' --> 5)-tetrahydropyran-(2 -eq --> O --> 2ax)-tetrahydropyran-(5' --> 6triple prime)-2triple prim e-methoxy-7triple prime-methyl-1triple prime,4triple prime-naphthalend ione, together with the known, allantoin, sitosterol and 3 beta-O-D-gl ucopyranosylsitosterol, have been isolated from Auxemma oncocalyx. The ir structures were determined from spectral data, including 2D NMR exp eriments.