35317-31-8 EPIPODOPHYLLOTOXIN DERIV Furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one, 5,8,8a,9-tetrahydro-9-[[4,6-O-(2-thienylmethylene)-.beta.-D-glucopyranosyl]oxy]-5-(3,4,5-trimethoxyphenyl)- NSC363607