Small molecule antiviral drug treatment for human papillomavirus infections

A compound of Formula III:

• or a pharmaceutically acceptable salt thereof,
• wherein:
• Y is CH or N;
• X3 is CH or N;
• W is —(CH2)n or —CH═CH—;
• R31 is —CH═CH2, —CR51═CH2, —CH═CHCH2N(CH3)2, —CH═CHCH3, —CH2(halo), or —CH3, wherein R51 is H or halo;
• R35 is H or halo;
• R36 is H, halo, —OCH3, —OCH2CH3, —OCH2CH2OCH3, —OCH2CH2—N-pyrrolidine, or —CONHCH3;
• R40 is H, —OCH3, —OCH2CH3, or —OCH2CH2OCH3;
• R41 is H or —C1-C4 alkyl;
• R42 is H, —CN, or —C1-C4 alkyl, or R41 and R42 together with the atoms to which they are attached form a 3- to 6-membered heterocycloalkyl ring;
• and
• n is 2, 3, or 4.