Patent ID: 9469664
Filing Date: 2016-10-18
CPC Classification: A61K,A61P,C07D,C07F,C07H,C12N

Claim Text:
1. A morpholino subunit, wherein the morpholino subunit has the following structure (XXXI) or a salt or stereoisomer thereof, wherein: B is a base-pairing moiety; W is S or O; X is —NR Y is O or —NR R R R R 4 is, at each occurrence, independently hydrogen, methyl, —C(═NH)NH 2 , —J-L-NHC(═NH)NH 2 or —[C(O)CHR′NH] m H, where —J is carbonyl (C(O)) or a direct bond, R′ is a side chain of a naturally occurring amino acid or a one- or two-carbon homolog thereof, and m is 1 to 6; R R L is an optional linker up to 18 atoms in length comprising alkyl, alkoxy, or alkylamino groups, or combinations thereof; wherein R R wherein: R R is an electron pair, hydrogen or C R Z is halo or a linkage to a solid support; and PG is C