29767-20-2 AIDS-001999 AIDS001999 ETP Furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one, 5,8,8a,9-tetrahydro-5-(4-hydroxy-3,5-dimethoxyphenyl)-9-[[4,6-O-[(R)-2-thienylmethylene]-.beta.-D-glucopyranosyl]oxy]-, (5R,5aR,8aR,9S)- NSC122819 Teniposide VM-26 Vehem Vumon