“…It is necessary to use a complete table of substituent effects instead of only the effects at a, ß, and y carbon atoms summarized previously.3 Substituent effects at carbons and at carbon atoms farther removed become nonnegligible when adding the effects of two hydroxyl groups. The calculated chemical shifts agree with those observed within 0.4 ppm at every carbon atom (0.8 ppm for carbinol carbon atoms, owing to their greater dependence on sample concentration) for the following compounds of the present study: (1) 5a-androstane-3/3,6d-diol, (2) 5a-androstane-3d,7a-diol, (3) 5a-androstane-3/3,7/3-diol, (4) 5a-androstane-3/3,lla-diol, (5) 5a-androstane-3d,ll/3-diol, (6) 5a-androstane-lla,17/3-diol. This is also the case for 5a-cholestane-3d,6a-diol, 5a-cholestane-3/3,6|8-diol, 5a-androstane-3/?,17,3-diol, and 5a-androstane-3a,17|3-diol previously reported.1415 For those compounds where the difference at one or more carbon atoms is outside this limit, the chemical shifts are given in Table I together with the deviation from the calculated values.…”