Synthesis and cellular effects of cycloterpenals: Cyclohexadienal-based activators of neurite outgrowth
作者:Bennie J. Bench、Shane E. Tichy、Lisa M. Perez、Jenna Benson、Coran M.H. Watanabe
DOI:10.1016/j.bmc.2008.07.030
日期:2008.8
An unusual class of diterpenoid natural products, 'cycloterpenals' ( with a central cyclohexadienal core), that arise in nature by condensation of retinoids and other isoprenes, have been isolated from a variety of organisms including marine sponges as well as from the human eye. A milk whey protein has also demonstrated the formation of a cycloterpenal derived from beta-ionylidineacetaldehyde. Here, we generate a synthetic library of these molecules where we detail reaction conditions required to effect cross condensation of alpha,beta-unsaturated aldehydes as opposed to homodimerization. The ability of this class of molecules to activate neurite outgrowth activity is reported. (C) 2008 Elsevier Ltd. All rights reserved.
Substituted Cyclohexadienals - Syntheses and Applications
申请人:Watanabe Coran M. H.
公开号:US20070232813A1
公开(公告)日:2007-10-04
The present invention is generally directed to the use of L-proline and certain derivatives thereof to catalyze the asymmetric self-condensation of α,β-unsaturated aldehydes to form homodimer and heterodimer cyclohexadienals. Reaction conditions are mild and yet amenable to a variety of different substrates yielding molecules with complex scaffolds from simple precursors. This approach allows for diversification and synthesis of this structural class of compounds in sufficient quantity, purity and enantioselectivity for, e.g., biological investigations and use as fluorescent probes, anti-cancer agents, anti-bacterial agents, and/or anti-fungal agents. The present invention is also generally directed to the cyclohexadienals produced.