Anti-viral 7-deaza L-nucleosides

A compound of formula (I):

• 5
• and pharmaceutically acceptable salts thereof, wherein
• a) R1 is H, C1-C6-alkyl, —Cl, —OH, C1-C4-alkoxy, —NH2, or —NHZR5;
• b) R2 and R3 independently are —H, C1-C6-alkyl, methyl, C2-C6-alkenyl, C2-C6 alkynyl, —Cl, —I, —Br, —F, or heterocyclyl;
• or R2 and R3 together with the carbons to which they are attached form a 5 membered ring;
• c) R4 is —NHZR5 or —N(R5)2, wherein Z is —CO— or —SO2— and R5 is C1-C6-alkyl, C5-C6-cycloalkyl, or aryl;
• or R4 is H, —OH, C1-C6-alkyl, C1-C6-alkenyl, C1-C4-alkoxy, or —NH2;
• d) X and Y are independently —N— or —CH—;
• and
• e) R6, R7, R8, and R9 are independently —H, —OH, C1-C6-alkyl, —NH2, —NHZR5, —F, —Cl, or —Br.