in order to support further on the structure of 1 , the 4-monodecarboxyderivative ( 2 ) , obtained by heating compound 1 at 100 degrees c for 30 min and the 5'-dephosphoderivative ( 3 ) , obtained by enzymatic hydrolysis of 1 with alkaline phosphatase , were also analysed by fab and 1h nmr techniques .
C0020291
hydrolysis
C0002059
alkaline phosphatase