Flavone analogues useful as anti-rejection agents
 Flavone analogues of formula ##STR1## wherein; X is O or S; PA1 R.sub.1 is C.sub.1 -C.sub.6 alkyl or C.sub.2 -C.sub.6 alkenyl; PA1 R.sub.2 is H, C.sub.1 -C.sub.6 alkyl or R.sub.2 O is a sugar residue; PA1 R.sub.3 is H, C.sub.1 -C.sub.6 alkyl or R.sub.3 O is a sugar residue; PA1 R.sub.4 is H, OH, or a sugar residue; PA1 R.sub.5 is H, C.sub.1 -C.sub.6 alkyl, or R.sub.5 O is a sugar residue; PA1 m is an integer of 1 or 2; and PA1 n is an integer from 0 to 5, PA1 are useful as anti-rejection agents in organ transplants. 
A A
A61K A61K
inventional inventional
Huifang Luwei Feng
Chen Liu Li