1. 3. β-7-12-Trihydroxyallocholanic acid, (allocholic acid) and allobilianic acid and 3. β-hydroxy-7.12-diketoallocholanic acid, have been synthesized.
2. Dehydroallocholanic acid could not be isolated by oxidation of 3. β-allocholic acid.
3. An investigation of this synthetic reaction, has shown that the hydroxyl group of C
7 position in the cyclopentanophenanthren nucleus is not split away with the water in the same way as acetic ester of C
7 hydroxyl group.
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