Sulfonyl semicarbazides, semicarbazides and ureas, pharmaceutical compositions thereof, and methods for treating hemorrhagic fever viruses, including infections associated with arenaviruses

A pharmaceutical composition comprising a pharmaceutically acceptable carrier and a pharmaceutically effective amount of a compound of formula I:

• wherein
• n is an integer from 0-6;
• m is an integer from 0-1;
• p is an integer from 0-1;
• R1 is selected from the group consisting of H and alkyl;
• R2 is selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkyl, substituted or unsubstituted branched alkyl, and substituted or unsubstituted unsaturated cycloheteroalkyls;
• or where R1 and R2 combine together to form a substituted or unsubstituted C4-10 cyclic saturated heteroalkyl;
• R3 is selected from the group consisting of H and alkyl;
• R4 is selected from the group consisting of H and alkyl;
• or a pharmaceutically acceptable salt thereof.