2.7.8.26 adenosylcobinamide-GDP + alpha-ribazole 2.7.8.26 adenosylcobinamide-GDP + alpha-ribazole 5'-phosphate 2.7.8.26 adenosylcobinamide-GDP + alpha-ribazole-5'-phosphate + H2O 2.7.8.26 alpha-ribazole-5'-phosphate + adenosylcobinamide-GDP