Cleavage of short oligoribonucleotides by a Zn2+ binding multi-nucleating azacrown conjugate

1,7-Bis{[3′,5′-bis(1,5,9-triazacyclocodecan-3-yloxy)metyl]benzyl}-1,4,7,10-tetraaxacyclododecane in the presence of 5 equivalents of Zn2+ cleave oligoribonucleotides at UpU sites, but does not exhibit selectivity towards UpUpU sites.69