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With the aid of a synthesis design system, we searched for common intermediates in routes to sets of target molecules. Finding such common intermediates will be a great help in constructing cost-effective synthetic routes. We tried to look for new common intermediates with 24 investigational or commercially produced antidepressants as target molecules. Most of the common intermediates were usually...
With the aid of proposals from a computer program for synthesis design, a new method of synthesizing azaspiranes has been developed. In this method, one starts with a suitable benzoic acid ester, which is subjected to Birch reduction. Then the anionic intermediate is alkylated with 1,2-dibromoethane. The product is subsequently reacted with an amine to give a spiro lactam.
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