Patent ID: 9408863
Filing Date: 2016-08-09
CPC Classification: A01N,A61K,C07H

Claim Text:
1. A compound having the structure: or a pharmaceutically acceptable salt thereof, wherein: X is O, S or CH Z is C B is a natural or non-natural purine or pyrimidine base, or B is selected from one of the following groups: R R R R R R R R R R R R R each occurrence of R each occurrence of R R R each occurrence of R each occurrence of R R each occurrence of R each occurrence of T is independently —S—, —O—, —SC(O)—, —SC(S)—, —OC(O)— and —OC(S)—; each occurrence of m is independently 0 or 1; and each occurrence of n is independently 1 or 2.