49709-17-3 L-Threonine, N-(((9-(5-O-phosphono-beta-D-ribofuranosyl)-9H-purin-6-yl)amino)carbonyl)-, barium salt (1:1) N-((9-beta-Ribofuranosyl-9H-purin-6-yl)carbamoyl)threonine N-(Purine-6-ylcarbamoyl)-L-threonine ribonucleoside 5'-phosphate pt(6)A