Patent ID: 6870039

Claim:
A compound having the formula: wherein: each Q is independently O, S, CH 2 , CHF or CF 2 ; each Bx is independently a nucleosidic base; each X is independently, OH, SH, SCH 3 , F, OCN, O(CH 2 ) n NH 2 , C 1 to C 10 lower alkyl, C 1 to C 10 substituted lower alkyl, alkaryl, aralkyl, Cl, Br, CN, CF 3 , OCF 3 , O-alkyl, S-alkyl, N-alkyl, O-alkenyl, S-alkenyl, N-alkenyl, SOCH 3 , SO 2 CH 3 , ONO 2 , NO 2 , N 3 , NH 2 , heterocycloalkyl, heterocycloalkaryl, aminoalkylamino, polyalkylamino, substituted silyl, an RNA cleaving group, a conjugate, a reporter group, or an intercalator; W is a 3′ hydroxyl protecting group; each Z is independently O or S; each T is independently a phosphorous blocking group each Y is H or a hydroxyl protecting group; and n is 1, 3, 5 or 7.