Interaction of steroids with some pyrimidine and purine derivatives.
D011687:Purines / Q000737:chemistry*; D011743:Pyrimidines; D013256:Steroids / Q000737:chemistry*
D011687:Purines; D011743:Pyrimidines; D013256:Steroids; C030986:pyrimidine; C030985:purine
PURINES/chemistry; STEROIDS/chemistry