Abstract
A general and facile synthesis of the 3-substituted 10-membered ring enediynes 18– 22 from the aldehydes 8 and 15 has been established by utilizing the intramolecular Nozaki–Hiyama–Kishi reaction and the lanthanide(III)-catalyzed rearrangement of allylic alkoxyacetates as the key steps. This work provides ready access to the ( E)-3-acyloxy-4-(arylmethylidene)cyclodeca-1,5-diynes, which can be converted into the bioactive enediynes under physiological conditions.
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