Patent number: 6965041
Abstract: The present invention provides a compound of formula (I), (II), or (III), wherein R1, R2, R2?, R3, and R3? are the same or different and each is H an alkyl, an alkenyl, an alkynyl, a cycloalkyl, an aryl, or an aralkyl. Alternatively, either of R2 or R2? combined with either of R3 or R3? comprises a ring. R4 is a protecting group or a solid support R5 is H or an alkyl. R6 is a protecting group, an amidoalkyl, an alkyl, an alkyl ketone, an alkenyl, an alkynyl, a cycloalkyl, an aryl, or an aralkyl. R15 is H or a protecting group. Q and Q1 are the same or different and each is a nucleoside, an oligonucleotide comprising a nucleoside, or an oligomer comprising a nucleoside, which is of formula (a) or (b), wherein B is a labeling group, an alkyl, an alkenyl, an alkynyl, a cyclic group optionally containing one or more heteroatoms, or an amino; and, E is H, a halogen, a hydroxy, an alkoxy, an ester, an amino or a protecting group. X and X1 are independently O, S, or Se, and n is an integer from 1 to about 300.
Type:
Grant
Filed:
February 16, 2000
Date of Patent:
November 15, 2005
Assignee:
The United States of America as represented by the Department of Health and Human Services
Inventors:
Serge L. Beaucage, Andrzej Wilk, Andrzej Grajkowski