3'-[[4-[[6-[[[3',6'-Bis(2,2-dimethyl-1-oxopropoxy)-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen-5(or6)-yl]carbonyl]amino]hexyl]amino]-1,4-dioxobutyl]amino]-2'3'-dideoxyuridine

Product number BW109481