Synthesis of possible antimetabolites in the purine series.
D000963:Antimetabolites / Q000737:chemistry*; D011687:Purines / Q000737:chemistry*; D011743:Pyrimidines / Q000737:chemistry*
D000963:Antimetabolites; D011687:Purines; D011743:Pyrimidines; C030985:purine
ANTIMETABOLITES/chemistry; PURINES/chemistry; PYRIMIDINES/chemistry