Diversity-orientated synthesis of macrocyclic heterocycles using a double SNAr approach
Piotr Raubo1, Rodrigo J Carbajo1, William McCoull1
1Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Cambridge, UK. piotr.raubo@astrazeneca.com.
Abstract:
An efficient macrocyclisation approach based on the double aromatic nucleophilic substitution (SNACK) was developed. This methodology allows a facile incorporation of heterocyclic motifs into macrocyclic rings and rapid synthesis of a significant number of structurally diverse macrocycles. SNACK macrocyclisation enables preparation of stable diastereoisomers of conformationally restricted macrocycles (atropisomers). Practical application of SNACK macrocyclisation in a drug discovery project was exemplified by the identification of high affinity macrocyclic binders of B-cell lymphoma 6 (BCL6).
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