{HEAD ~ The compound} 4, wherein {TAIL ~ R3} is 5 methylisoxazol 3 yl and T is a covalent bond, namely 2 5 tetrahydrofuran 3,4 diol 
wherein
{ HEAD ~ The compound } 4 , wherein { TAIL ~ R3 } is 5 methylisoxazol 3 yl and T is a covalent bond , namely 2 5 tetrahydrofuran 3,4 diol
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH