Beilstein J. Org. Chem.2009,5, No. 38, doi:10.3762/bjoc.5.38
variety the normal world generates suffices. But it is good to be aware of just what the assumptions are.
Let me give an example. In one problem, a set of isomers of a bicycliccompound (cyclothiazide) is eliminated from discussion because a bridge can be formed only by cis fusion. In another example, two