ddGTP

ddATP(Na)

ddATP

4-Azido-N-[( 9H-fluoren-9 -ylmethoxy)c arbonyl]-L-p henylalanine

c-di-AMP

1-Phenyl-2-p iperidinone

1-(5-Chloro- 1H-pyrrol-2- yl)-2,2,2-tr ifluoroethan one

tert-butyl 4-ethynylpiperidi ne-1-carboxylate