#$%^&*AU2020227036A120200917.pdf#####ABSTRACT The invention provides a method of treating cancer in a subject in need thereof, comprising administering to the subject: (a) a compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein R is hydrogen or an acyl group; and (b) a BCL-2 inhibitor; wherein the compound of Formula I or pharmaceutically acceptable salt thereof and a BCL-2 inhibitor are administered in amounts which in combination are therapeutically effective. The invention further provides a pharmaceutical composition comprising a compound of Formula I or a pharmaceutically acceptable salt thereof, a BCL-2 inhibitor and a pharmaceutically acceptable carrier or excipient.