摘要:
The invention relates to a method of forming a multi-substituted benzene compound. In particular, the method involves benzene construction via organocatalytic formal [3+3] cycloaddition reaction.
摘要:
The invention provides a formulation preventing the collapse of insects of Apidae family, especially bees and bumblebees, especially as a result of a syndrome specified as CCD (Colony Collapse Disorder) and the use thereof. Moreover, the formulation increases vigour in a bee colony. The invention belongs to the field of apiary and protection of environment from negative effects of using insecticides in agriculture and fruit culture.
摘要:
The present invention relates to compositions, for example, the DBU/Hexafluoroacetone hydrate salt, and processes of preparing and using the same for the modification of chemical compounds via the release of trifluoroacetate. The DBU/Hexafluoroacetone hydrate salt can perform trifluoromethylation reactions on chemical compounds, such as carbonyl group-containing compounds.
摘要:
The invention provides N,N'-disubstituted monothiourea or bisthiourea-Pd(0) complexes that are useful as catalysts for palladium-catalyzed Heck reaction of aryl iodides and bromides with olefins, and as catalysts for palladium catalyzed Suzuki reactions of organoboric compounds and aryl halides (Formula A).
摘要:
The invention provides N,N'-disubstituted monothiourea or bisthiourea-Pd(0) complexes that are useful as catalysts for palladium-catalyzed Heck reaction of aryl iodides and bromides with olefins, and as catalysts for palladium catalyzed Suzuki reactions of organoboric compounds and aryl halides (Formula A).
摘要:
The present invention pertains to certain ketones and reduced ketones and derivatives thereof which, inter alia , inhibit osteoclast survival, formation, and/or activity; and/or inhibit bone resorption, and more particularly to compounds of the formulae: (1) (2) wherein: Ar 1 is independently a biphenyl, phenanthryl, fluorenyl, or carbazolyl, and is optionally substituted; R alk is independently a C 2-10 alkylene group, and is optionally substituted; -OR O , if present, is independently -OH or -OR K ; -OR K , if present, is independently selected from: -O-R K1 ; -O-C(=O)R K2 ; -O-C(=O)OR K3 ; -O-S(=O)2OR K4 ; Q is independently -OH or -OR OT ; wherein: -OR OT , if present, is independently selected from: -O-R E1 ; -O-C(=O)-R E2 ; -O-C(=O)-O-R E3 ; -O-C(=O)-O-SO 3 R E4 ; -O-C(=O)-O-(CH 2 ) n -COOR E5 ; -O-C(=O)-(CH 2 ) n -NR N1 R N2 ; -O-C(=O)-(CH 2 ) n -NH-C(=O)R E6 ; -O-C(=O)-(CH 2 ) n -C(=O)-NR N3 R N4 ; -O-P(=O)(OR E7 )(OR E8 ); -O-R PA ; R PA , if present, is an organic group which incorporates a phosphonic acid group; with the proviso that if -OR OT is -O-R E1 , then R E1 is not a phenyl group substituted with a sulfonyl group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, or prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo , to inhibit osteoclast survival, formation, and/or activity, and to inhibit conditions mediated by osteoclasts and/or characterised by bone resorption, in the treatment of bone disorders such as osteoporosis, rheumatoid arthritis, cancer associated bone disease, Paget's disease, aseptic loosening of prosthetic implants, and the like; and/or in the treatment of conditions associated with inflammation or activation of the immune system.
摘要:
It has been discovered certain 1,3-bis-(substituted-phenyl)-2-propen-1-ones, including compounds of formula (I) inhibit the expression of VCAM-1, and thus can be used to treat a patient with a disorder mediated by VCAM-1. Examples of inflammatory disorders that are mediated by VCAM-1 include, but are not limited to arthritis, asthma, dermatitis, cystic fibrosis, post transplantation late and chronic solid organ rejection, multiple sclerosis, systemic lupus erythematosis, inflammatory bowel diseases, autoimmune diabetes, diabetic retinopathy, rhinitis, ischemia-reperfusion injury, post-angioplasty restenosis, chronic obstructive pulmonary disease (COPD), glomerulonephritis, Graves disease, gastrointestinal allergies, conjunctivitis, atherosclerosis, coronary artery disease, angina and small artery disease.
摘要:
The present invention relates to chalcone and chalcone derivatives and analogs which are useful as angiogenesis inhibitors. The present compounds, which are inexpensive to synthesize, exhibit unexpectedly good activity as angiogenesis inhibitors. The present invention also relates to the use of chalcone and its analogs as antitumor/anticancer agents and to treat a number of conditions or disease states in which angiogenesis is a factor, including angiongenic skin diseases such as psoriasis, acne, rosacea, warts, eczema, hemangiomas, lymphangiogenesis, among numerous others, as well as chronic inflammatory disease such as arthritis.
摘要:
The cross-linked silicone polymer based material comprises a cross-linked silicone polymer matrix and photoinitiator groupings dispersed and bound in the matrix. The use of this material in processes aiming at making the material hydrophilic greatly simplifies the processes and the resulting products have particularly interesting and advantageous characteristics. The invention is useful in the manufacture of contact lenses.
摘要:
A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stability to the colorant so that the colorant does not fade when exposed to sunlight or artificial light.