2-METHYLENE-5-SUBSTITUTED-METHYLENECYCLOPENTANONE DERIVATIVES AND USE THEREOF
申请人:Zhao Linxiang
公开号:US20110060054A1
公开(公告)日:2011-03-10
The invention relates to 2-methylene-5-substituted-methylenecyclopentanone derivatives of formula I, and the use thereof. The derivatives of formula I as active components are useful for preparing a medicine for the treatment and/or prevention of cancer diseases such as breast cancer, lung cancer, colon cancer, rectal cancer, stomach cancer, prostate cancer, bladder cancer, uterus cancer, pancreatic cancer and ovary cancer. The active compounds of the invention may be used as an anticancer drug alone or used in combination with one or more other antitumor drugs. A combined therapy can be carried out by administrating each therapeutic component concurrently, subsequently or separately.
An efficient and room-temperature procedure is developed for high yield synthesis of novel α,β-unsaturated derivatives of thiopyran 3 directly from ketone 1 and various aldehydes in the presence of catalytic quantities of TMSNMe2 and MgBr2˙OEt2 under solvent-free conditions. The main advantage of the procedure is that the formation of the undesired bis by-products is minimized. In addition, the procedure
The present invention relates to novel compounds and their use in an olfactory acceptable amount in perfume compositions as flavor and/or fragrance enhancing agents and to methods of improving, enhancing or modifying a fragrance formulation comprising adding to a consumer composition an olfactory acceptable amount of any one or more of the novel compounds.
The present application relates to perfume delivery systems and consumer products comprising perfume delivery systems and or perfume raw materials, as well as processes for making and using such perfume delivery systems and consumer products.
Industrially advantageous processes for producing a 2-alkyl-2-cyclopentenone in high yields starting from a 2-(1-hydroxyalkyl)cyclopentanone or a 2-alkylidenecyclopentanone, which are obtainable from a cyclopentanone and a carbonyl compound. A 2-(1-hydroxyalkyl)cyclopentanone represented by the following general formula (1):
1
(wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
and R
7
each independently represents hydrogen atom, an alkyl group having 1 to 10 carbon atoms which may have one or more substituents or an aromatic group which may have one or more substituents, and each of (1) R
6
or R
7
with R
3
and (2) R
6
or R
7
with R
4
or R
5
may be together combined to form a ring which may have a double bond) is subjected to dehydrative isomerization in the presence of a bromine compound and/or an iodine compound.