Comparative studies of ‘bile salts’. 19. The chemistry of ranol

Table 1. Proton resonances (a8s r values) of cyprinol and cyprinol tetra-acetate The numbers in parentheses indicate the number of protons resonating at the appropriate frequency as determined by integrated area measurement. T values of groups CH3 CH3 CH3 CH2 OH or CH-OH or Solvent (C-18) (C-19) (C-21) CH2OCOCH3 CH.OCOCH3 O-COCH3 Cyprinol Pyridine