5-(4-bromobenzyl)-3-isobutoxycyclopent-2-enone 以
丙酮 为溶剂,
反应 16.0h,
以HPLC providing 7 as a white solid (46% yield)的产率得到5-(4-bromobenzyl)-3-hydroxycyclopent-2-enone
参考文献:
名称:
Cycloalkyl-dione derivatives and methods of their use
Cycloalkyl-dione Derivatives And Methods Of Their Use
申请人:Atasoylu Onur
公开号:US20120329877A1
公开(公告)日:2012-12-27
The present invention is directed to compounds of formula I:
wherein A is
n is 0, 1, or 2; m is 0 or 1; R
1
is H or C
1-6
alkyl and R
2
is H, C
1-6
alkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; and X is O or N; as well as tautomers and pharmaceutically acceptable salt forms thereof. Uses of these compounds are also described.
Cyclopentane-1,3-dione: A Novel Isostere for the Carboxylic Acid Functional Group. Application to the Design of Potent Thromboxane (A2) Receptor Antagonists
作者:Carlo Ballatore、James H. Soper、Francesco Piscitelli、Michael James、Longchuan Huang、Onur Atasoylu、Donna M. Huryn、John Q. Trojanowski、Virginia M.-Y. Lee、Kurt R. Brunden、Amos B. Smith
DOI:10.1021/jm200980u
日期:2011.10.13
Cyclopentane-1,3-diones are known to exhibit pK(a) values typically in the range of carboxylic acids. To explore the potential of the cyclopentane-1,3-dione unit as a carboxylic acid isostere, the physical chemical properties of representative congeners were examined and compared with similar derivatives bearing carboxylic acid or tetrazole residues. These studies suggest that cyclopentane-1,3-diones may effectively substitute for the carboxylic acid functional group. To demonstrate the use of the cyclopentane-1,3-dione isostere in drug design, derivatives of a known thromboxane A(2) prostanoid (TP) receptor antagonist, 3-(3-(2-(4-chlorophenylsulfonamido)ethyl)phenyl)propanoic acid (12), were synthesized and evaluated in both functional and radioligand-binding assays. A series of mono- and disubstituted cyclopentane-1,3-dione derivatives (41-45) were identified that exhibit nanomolar IC50 and K-d values similar to 12. Collectively, these studies demonstrate that the cyclopentane-1,3-dione moiety comprises a novel isostere of the carboxylic acid functional group. Given the combination of the relatively strong acidity, tunable lipophilicity, and versatility of the structure, the cyclopentane-1,3-dione moiety may constitute a valuable addition to the palette of carboxylic acid isosteres.
US8530520B2
申请人:——
公开号:US8530520B2
公开(公告)日:2013-09-10
Cycloalkyl-dione derivatives and methods of their use
申请人:Atasoylu Onur
公开号:US08530520B2
公开(公告)日:2013-09-10
The present invention is directed to carboxylic acid-containing pharmaceutical compounds where the carboxylic acid moieties have been substituted with cycloalkyl-dione derivatives, as well as tautomers and pharmaceutically acceptable salt forms thereof. These bioisosteric replacements improve the compound's ability to effectively cross the blood brain barrier and result in improved pharmacokinetic, toxicological, and/or safety profiles.