摘要:
A photoresist composition containing (A) a polymer having a structural unit (I) that includes an acid-labile group, and (I) a compound represented by the following formula (1). In the following formula (1), R1, R2, R3 and R represent a hydrogen atom or a monovalent organic group having 1 to 20 carbon atoms. X represents a single bond, an oxygen atom or —NRa—. Ra represents a hydrogen atom, a hydroxy group or a monovalent organic group having 1 to 20 carbon atoms, and optionally taken together represents a ring structure by binding with R each other. A− represents —SO3− or —CO2−. M+ represents a monovalent onium cation.
摘要:
This invention provides for a compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein R1-R4, L and X are defined herein. The compounds of formula (I) and pharmaceutically acceptable salts thereof are cationic lipids useful in the delivery of biologically active agents to cells and tissues.
摘要:
The present application discloses an acid labile lipophilic molecular conjugate of cancer chemotherapeutic agents and methods for reducing or substantially eliminating the side effects of chemotherapy associated with the administration of a cancer chemotherapeutic agent to a patient in need thereof.
摘要:
The invention pertains to the use of Group 8 transition metal carbene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand are used to catalyze cross-metathesis reactions to provide a variety of substituted and functionalized olefins, including phosphonate-substituted olefins, directly halogenated olefins, 1,1,2-trisubstituted olefins, and quaternary allylic olefins. The invention further provides a method for creating functional diversity using the aforementioned complexes to catalyze cross-metathesis reactions of a first olefinic reactant, which may or may not be substituted with a functional group, with each of a plurality of different olefinic reactants, which may or may not be substituted with functional groups, to give a plurality of structurally distinct olefinic products. The methodology of the invention is also useful in facilitating the stereoselective synthesis of 1,2-disubstituted olefins in the cis configuration.
摘要:
A dioxolane derivative represented by formula (G1) is provided. The explanation of the substituents is given in the specification. The use of the dioxolane derivative enables the production of a liquid crystal composition and a liquid crystal display device including the liquid crystal composition.
摘要:
The present invention relates to a novel enantioselective method of preparing (S)- and (R)-enantiomers of N-{3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]-6-5 methoxyphenyl}-1-[2,3-dihydroxy-propyl]cyclopropanesulfonamide, to novel intermediate compounds, and to the use of said novel intermediate compounds for the preparation of said (S)- and (R)-enantiomers of N-{3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]-6-methoxyphenyl}-1-[2,3-dihydroxy-propyl]cyclopropanesulfonamide.
摘要:
There are provided various polyunsaturated fatty acid monoglycerides and derivatives thereof. These compounds can be useful as cancer chemopreventive agents, cancer treating agent, inhibiting tumor growth or cell proliferation, reducing tumor growth or as radioenhencers for radiotherapy of cancer.
摘要:
The present invention relates to a process for obtaining simultaneously several compositions comprising fatty acid alkyl esters (biodiesel), glycerol formal and fatty acid glycerol formal esters.
摘要:
There are provided various polyunsaturated fatty acid monoglycerides and derivatives thereof. These compounds can be useful as cancer chemopreventive agents, cancer treating agent, inhibiting tumor growth or cell proliferation, reducing tumor growth or as radioenhencers for radiotherapy of cancer.
摘要:
Disclosed herein are methods and intermediates useful in the preparation of macrolides, e.g., compounds of formula (IV) wherein R1-R12 are as defined herein.