摘要:
A label with which labeling is easy when labeling a molecule, i.e., a label that has a high reaction rate upon labeling and that produces a high reaction yield, as well as a precursor for the production of the label are provided. This is achieved by a hexatriene-β-carbonyl compound represented by Formula (I), a hexatriene-β-carbonyl compound represented by Formula (II), a hexatriene-β-carbonyl compound represented by Formula (III) and a hexatriene-β-carbonyl compound represented by Formula (IV).
(wherein R 1 , R 2 , R 3 , R 4 , R 5 , X 1 , X 2 and Z are as defined in the specification)
摘要:
The present invention provides new retinoid compounds and uses of the compounds in humans and animals for chemoprevention of skin and/or breast cancer and for therapy of leukemia.
摘要:
This invention relates to novel ultraviolet absorbing methine-based compounds comprising polyoxyalkylene moieties. Such compounds provide excellent, inexpensive, protection from ultraviolet exposure within various media, including, but not limited to, thermoplastics. The presence of polyoxyalkylene chains on the methine backbone permits such an introduction within thermoplastics while simultaneously providing very low degrees of migration from the target substrate. This invention also concerns methods of making the aforementioned ultraviolet absorbing thermoplastic compositions.
摘要:
The acrylic acid esters of formula I wherein A is a benzene or naphthalene ring, R 1 is a saturated or unsaturated, straight or branched, alicyclic or aromatic C 10 -C 30 hydrocarbon residue which can contain heteroatoms and can be substituted by an ionic substituent, R 2 in 2- or 3-position is hydrogen, a straight or branched C 1 -C 6 residue; an optionally substituted aromatic or optionally substituted heterocyclic residue, R 3 and R 4 stand for hydrogen, a straight or branched C 1 -C 6 alkyl or C 1 -C 6 alkoxy residue, a substituted or condensed heterocyclic residue, -OH, -NO 2 , -NH 2 , -N(C 1 -C 6 alkyl) 2 , -N(hydroxyalkyl) 2 , -NHCO 2 CH 3 or -NH(heterocycle), R 2 , R 3 and R 4 may be the same or different, X stands for -OH or NHR 6 , wherein R 6 is hydrogen a saturated or unsaturated, straight or branched C 1 -C 20 hydrocarbon or an optionally substituted aromatic or heterocyclic residue, and the acrylic double bond is of the E configuration, are useful for the delivery of organoleptic compounds, especially for flavours, fragrances and masking agents and antimicrobial compounds. They can also deliver fluorescent whitening agents.
摘要:
Novel retinoid-related compounds that can substitute for retinoic acid as preventives or remedies for various diseases and compounds that are antagonistic to retinoids, i.e., heterocyclic compounds represented by the general formula (1-I): Z-(CR3=CR2)n-COOR1 or physiologically acceptable salts thereof, and compounds represented by general formula (2-I) or physiologically acceptable salts thereof. The compounds have a potent ability to combine with RARs and are efficacious in treating various diseases including various keratinization anomalies and rheumatoid arthritis.
摘要:
Optical element having non-linear optical (NLO) activity comprising a substrate coated with alternating monolayer of two anilinyl polyene compounds, one having a long-chain alkyl group attached to the anilinyl component and a carboxylate group attached to the polyene component and the other having a long chain alkyl carboxylate group attached to the polyene component an optical device comprising the element, a preparative process for the element and the second compound.
摘要:
A process for preparing a diphenylalkene derivative of the formula [II] which comprises oxidizing a diphenylalkanoic acid derivative of the formula [I] wherein R₁ and R₂ are each substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or substituted or unsubstituted aryl, R₁ and R₂ may form a heteroring together therewith or with an adjacent benzene ring, R₃, R₄, R₅, R₆, R₇, R₈, R₉, R₁₀ and R₁₁ are each hydrogen atom, halogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted hydroxyl or substituted or unsubstituted amino, R₁₂ and R₁₃ are each hydrogen atom or substituted or unsubstituted alkyl, X is carboxyl, amide, ester or halide thereof.
摘要翻译:制备式[II]的二苯基烯衍生物的方法,其包括将式[I]的二苯基链烷酸衍生物,其中R 1和R 2各自是取代或未取代的烷基,取代或未取代的链烯基, 未取代的炔基,取代或未取代的环烷基,取代或未取代的芳烷基或取代或未取代的芳基,R 1和R 2可以与其一起或与相邻的苯环R3,R4,R5,R6,R7,R8,R9,R10和 R 11各自为氢原子,卤素原子,取代或未取代的烷基,取代或未取代的羟基或取代或未取代的氨基,R 12和R 13各自为氢原子或取代或未取代的烷基,X为羧基,酰胺,酯或卤化物。
摘要:
An object of the present invention is to provide a compound that is useful as a hole transport material for providing a device for converting light into electricity that is capable of extracting current with high efficiency, and a device for converting light into electricity and a solar cell that include the compound in a hole transport layer and have favorable light/electricity conversion characteristics. The present invention provides a compound represented by the general formula (1) below. In the formula, R 1 to R 20 each represent a hydrogen atom, an alkoxy group having 1 to 20 carbon atoms, or the like, and Y represents an oxygen atom or CR 21 R 22 , where R 21 and R 22 each represent a nitrile group, an acyl group having 1 to 10 carbon atoms, or the like.