2441-03-4 ANGOLIDE Alloisoleucine, N-(L-2-hydroxy-3-methylbutyryl)-, cyclic ester with N-(L-2-hydroxy-3-methylbutyryl)-L-isoleucine, D- Cyclic(D-alloisoleucyl-L-.alpha.-hydroxyisovaleryl-L-isoleucyl-L-.alpha.-hydroxyisovaleryl) Cyclo(D-alloisoleucyl-L-.alpha.-hydroxyisovaleryl-L-isoleucyl-L-.alpha.-hydroxy-isovaleryl) NSC124461