(((11,17,23-Tris(((carboxymethyl)thio)methyl)-25,26,27,28-tetrahydroxypentacyclo[19.3.1.1~3,7~.1~9,13~.1~15,19~]octacosa-1(25),3(28),4,6,9(27),10,12,15(26),16,18,21,23-dodecaen-5-yl)methyl)thio)acetic\tacid AIDS-140027 AIDS140027 NSC650796