.alpha.-Peltatin 568-53-6 Furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one, 5,8,8a,9-tetrahydro-10-hydroxy-5-(4-hydroxy-3,5-dimethoxyphenyl)- Furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one, 5,8,8a,9-tetrahydro-10-hydroxy-5-(4-hydroxy-3,5-dimethoxyphenyl)-, [5R-(5.alpha.,5a.beta.,8a.alpha.)]- NCI-1074 NSC24817 Naphtho[2,3-d]-1,3-dioxole-6-carboxylic acid, 5,6,7,8-tetrahydro-9-hydroxy-5-(4-hydroxy-3,5-dimethoxyphenyl)-7-(hydroxymethyl)-, .gamma.-lactone PELTATIN A