A new synthetic approach to the C-D ring portion of streptonigrin and its analogs.
Two new synthetic methods for the construction of the C-D moiety of streptonigrin have been developed. The first is the cyclization of beta, gamma unsaturated ketals to cyanopyridines. These ketals were prepared from akylidenemalononitriles. The second method utilized is the ortho-directed metalatio...
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| Language: | en |
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The University of Arizona.
1988
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| Online Access: | http://hdl.handle.net/10150/184620 |