Branched phospholipids

A compound having the structure of Formula I:

• or a pharmaceutically acceptable salt thereof,
• Wherein n1 is an integer selected from 0, 1 or 2;
• Each R1, R2, R3 and R4 is independently selected from C4-20 alkyl and C4-20 alkenyl;
• wherein said R1, R2, R3 and R4 is optionally substituted with one or two —O(C(O))—C4-16 alkyl, —O(C(O))—C4-16 alkenyl or —O(C(O))—C4-16 alkynyl;
• Each R5, R6 and R7 is independently selected from H and C1-3 alkyl.