two steroids , 17alpha,20beta,21-trihydroxy-4-pregnane-3,11-dione and 17alpha,20alpha,21-trihydroxy-4-pregnene-3,11-dione were excreted as major c21 metabolites in the baboon but were not identified in the urine from the macaque monkey .
C0038317
steroids
C0033006
pregnane