the boc-protected derivative of a photoactivatable , carbene-generating analogue of phenylalanine , l-4'- [ 3- ( trifluoromethyl ) -3h-diazirin-3-yl ] phenylalanine [ ( tmd ) phe ] , was used to acylate 5'-o-phosphorylcytidylyl ( 3'-5 ' ) adenosine ( pcpa ) .
C0031453
phe
C0030135
pcpa