Compounds, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds to treat, prevent or diagnose diseases, disorders, or conditions associated with one or more of the lysophosphatidic acid receptors are provided.
Cis-configurational unsaturated ester, process for producing the same, and fragrance composition containing the same
申请人:Kuraray Co., Ltd.
公开号:EP0950652A1
公开(公告)日:1999-10-20
The present invention provides a cis-configurational unsaturated ester represented by the formula (1)
(where R is a methyl group or a phenyl group, and n is 1 or 2)
and also provides a fragrance composition containing the cis-configurational unsaturated ester in an effective amount. The cis-configurational unsaturated ester represented by the formula (1) can be produced by
reacting a cyclic vinyl ether represented by the formula (2a)
(where n is defined as above) with a Grignard reagent represented by the formula (3a)
RMgX (3a)
(where R is defined as above, and X is a chlorine atom, a bromine atom or an iodine atom)
in the presence of a triarylphosphine and not more than 0.05 mol of a nickel compound per one mole of the cyclic vinyl ether represented by the formula (2a) to give a cis-configurational unsaturated alcohol represented by the formula (4a)
(where n and R are defined as above); and
subjecting this cis-configurational unsaturated alcohol to acylation with acetic acid or a derivative thereof to give the cis-configurational unsaturated esters represented by the formula (1).
本发明提供了一种顺式构型不饱和酯,由式(1)表示
(其中 R 为甲基或苯基,n 为 1 或 2)。
并提供了一种含有有效量顺式结构不饱和酯的香料组合物。由式(1)代表的顺式构型不饱和酯可通过以下方法制得
使式(2a)代表的环乙烯基醚反应
(其中 n 的定义同上)与式 (3a) 所代表的格氏试剂反应制得
RMgX (3a)
(其中 R 的定义同上,X 为氯原子、溴原子或碘原子)
在三芳基膦和每 1 摩尔式(2a)所代表的环乙烯基醚中含有不超过 0.05 摩尔镍化合物的情况下,生成式(4a)所代表的顺式构型不饱和醇
(其中 n 和 R 的定义同上);以及
将顺式构型不饱和醇与乙酸或其衍生物进行酰化,得到式(1)代表的顺式构型不饱和酯。
Stereoselectivity of electrophile-promoted cyclizations of .gamma.-hydroxyalkenes. An investigation of carbohydrate-derived and model substrates
作者:Allen B. Reitz、Samuel O. Nortey、Bruce E. Maryanoff、Dennis Liotta、Robert Monahan
DOI:10.1021/jo00228a009
日期:1987.9
REITZ, ALLEN B.;NORTEY, SAMUEL O.;MARYANOFF, BRUCE E.;LIOTTA, DENNIS;MONA+, J. ORG. CHEM., 52,(1987) N 19, 4191-4202
作者:REITZ, ALLEN B.、NORTEY, SAMUEL O.、MARYANOFF, BRUCE E.、LIOTTA, DENNIS、MONA+