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Dr. Baptiste Legrand, Christophe André, Emmanuel Wenger, Dr. Claude Didierjean, Dr. Marie Christine Averlant-Petit, Prof. Jean Martinez, Dr. Monique Calmes and Dr. Muriel Amblard Robust Helix Formation in a New Family of Oligoureas Based on a Constrained Bicyclic Building Block Angewandte Chemie International Edition 51

Version of Record online: 4 OCT 2012 | DOI: 10.1002/anie.201205842

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BAC for more: A constrained bicyclic building block with urea linkages is an efficient combination for the formation of a highly rigid helical system. This type of bicyclic amino carbamoyl (BAC) foldamer was studied both in solution (see scheme) and in the solid state. A robust H-bond (dotted line) network was found between the carbonyl oxygen atoms (red) and the amino groups (dark blue) within the helix.

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