| http://www.w3.org/ns/prov#value | - A liposome comprising an antitumor drug and a phospholipid derivative of formula (I): ##STR5## wherein A has the following formula (II): ##STR6## wherein each of R1 and R2, which are independent of each other, is a C11 -C19 alkyl group or a C11 -C19 alkenyl group, and D is a single bond, --C???(NH2 +)(CH2)0-10 --, --CO(CH2)0-10 -- or --CH2 (CH2)0-10 --, and B is a linking group having the followin
|
