Synthesis and biological activity of N-substituted aminocarbonyl-1,3-dioxolanes as VLA-4 antagonists
摘要:
A novel set of compounds with a 1,3-dioxolane ring which acts as a proline bioisostere have been successfully designed as VLA-4 receptor antagonists. Compounds (18e), (28j), and (35g) were shown to have high receptor affinities. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis and biological activity of N-substituted aminocarbonyl-1,3-dioxolanes as VLA-4 antagonists
摘要:
A novel set of compounds with a 1,3-dioxolane ring which acts as a proline bioisostere have been successfully designed as VLA-4 receptor antagonists. Compounds (18e), (28j), and (35g) were shown to have high receptor affinities. (C) 2010 Elsevier Ltd. All rights reserved.
planetary ball mill proved to be more suitable for the synthesis of aminoesters from N-protected aminoacids via a one-pot activation/esterification reaction in the presence of various dialkyl dicarbonates or chloroformates. The spot-to-spot reactions were straightforward, leading to the final products in reduced reaction times with improved yields and simplified work-up procedures.