Facile access to novel chromeno-2,6,9-trioxabicyclo[3.3.1]nonadienes via tandem nucleophilic substitution and [4+2] hetero Diels–Alder reaction: experimental and theoretical study
An efficient synthesis of novel chromeno-2,6,9-trioxabicyclo-[3.3.1]nonadienes (CTOBN) scaffolds was achieved by mild base mediated reaction of 4-chloro-3-formylcoumarin and o-hydroxyacetophenones. The structure of the product was confirmed by X-ray analysis and the proposed mechanism was validated computationally at B3LYP/6-31G(d) level.
3-SUBSTITUTED-1H-INDOLE COMPOUNDS, THEIR USE AS MTOR KINASE AND PI3 KINASE INHIBITORS, AND THEIR SYNTHESES
申请人:Bursavich Matthew Gregory
公开号:US20090311217A1
公开(公告)日:2009-12-17
The invention relates to 3-substituted-1H-indole compounds of the Formula I:
or a pharmaceutically acceptable salt thereof, wherein the constituent variables are as defined herein, compositions comprising the compounds, and methods for making and using the compounds.
Various paeonol analogues were synthesized and tested in vitro as inhibitors of platelet aggregation. Structural properties (or descriptors) of paeonol analogues were calculated and the structure-activity relationships were determined. Several multiple linear and nonlinear regression models and back-propagation neural network model were tested and the latter using relative positive charge, hydration energy, and hydrophilic factor as inputs gave the best data fitting with R-2 = 0.89 and q(pre)(2) = 0.66. The correlation coefficient between antiplatelet inhibition activity with an interaction energy between the paeonol compounds with COX-1 enzyme is only 0.39. (c) 2005 Elsevier Ltd. All rights reserved.
Nitrohydroxy Aromatic Ketones. I. Nitrohydroxyacetophenones