摘要:
The invention addresses the problem of providing a method for producing 2-acetyl-4H,9H-naphtho[2,3-b]furan-4,9-dione that is suited to industrial production. The invention provides a method for producing 2-acetyl-4H,9H-naphtho[2,3-b]furan-4,9-dione by reacting 3-bromo-3-buten-2-one and 2-hydroxy-1,4-naphthoquinone in the presence of a solvent, then obtaining crystals of 2-acetyl-4H,9H-naphtho[2,3-b]furan-4,9-dione by adding an alcohol-based solvent and/or water to the reaction system, and treating the crystals by using a specific adsorbent in the presence of a solvent.
摘要:
The present disclosure relates to novel cocrystals and novel methods for cocrystallization. In particular, the disclosure includes cocrystals comprising a salt of an active agent, such as a chloride salt of an active pharmaceutical ingredient. The present disclosure also relates to methods of preparing cocrystals and methods for screening for solid state phases.
摘要:
The present invention relates to a transition metal complex represented by the formula (I): wherein M represents a Group 4 transition metal; —Y— represents (a): —C(R1)(R20)-A-, (b): —C(R1)(R20)-A1(R30)—, (c): —C(R1)=A1-, or (d): —C(R1)=A1-A2-R30; A represents a Group 16 element and A1 and A2 each represents a Group 15 element; R1 to R9, R20, and R30 are the same or different and each represents an optionally substituted hydrocarbon group, etc.; and X1 and X2 are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C1-10 alkyl group, etc., and an intermediate product thereof, and a catalyst for olefin polymerization which comprises said transition metal complex as a component.
摘要:
Compositions suitable for use as signal generation components of an immunoassay, and methods for their use. According to one aspect of the invention, the composition includes a carrier having a coating of an aminodextran and a metal chelate incorporated therein. The metal chelate is present in the amount of at least 0.065 μMole per gram of carrier, and the aminodextran coating density averaging at least about 45 μg per milligram of carrier. In another aspect of the invention, carrier is dyed with a complex having the formula: M(L1)x(L2)y, wherein M is a metal selected from the group consisting of europium, terbium, dysprosium, samarium, osmium and ruthenium; L1 is a ligand selected from the group consisting of DPP, TOPO, TPPO; L2 comprises a ligand having the formula wherein R is one or more substituents, each substituent comprising an electron donating group; n=2-10; x=1-2; and y=2-4.
摘要翻译:适用于免疫测定的信号产生组分的组合物及其使用方法。 根据本发明的一个方面,组合物包括具有氨基葡聚糖和金属螯合物的涂层的载体。 金属螯合物以每克载体至少0.065mMole的量存在,并且氨基葡聚糖涂层密度平均至少约45μg/毫克载体。 在本发明的另一方面,载体用具有下式的复合物染色:M(L1)x(L2)y,其中M是选自铕,铽,镝,钐,锇和钌的金属; L1是选自DPP,TOPO,TPPO; L2包含具有下式的配体:其中R是一个或多个取代基,每个取代基包括给电子基团; n = 2-10; x = 1-2; y = 2-4。
摘要:
An oxygen scavenging composition or system is provided comprising an oxygen scavenging material, a photoinitiator, and at least one catalyst effective in catalyzing an oxygen scavenging reaction, wherein the photoinitiator comprises a benzophenone derivative containing at least two benzophenone moieties. A film, a multi-phase composition, a multi-layer composition, a multi-layer film, an article comprising the oxygen scavenging composition, a method for preparing the oxygen scavenging composition, and a method for scavenging oxygen are also provided. Non-extractable benzophenone derivative photoinitiators and methods for preparing same are also provided.
摘要:
A retroviral protease inhibiting compound of the formula A-X-B or a pharmaceutically acceptable salt, prodrug or ester thereof, wherein X is a linking group; A is (1) substituted amino, (2) substituted carbonyl, (3) functionalized imino, (4) functionalized alkyl, (5) functionalized acyl, (6) functionalized heterocyclic or (7) functionalized (heterocyclic)alkyl; and B is (1) substituted carbonyl independently defined as herein, (2) substituted amino independently defined as herein, (3) functionalized imino independently defined as herein, (4) functionalized alkyl independently defined as herein, (5) functionalized acyl independently defined as herein, (6) functionalized heterocyclic independently defined as herein or (7) functionalized (heterocyclic)alkyl independently defined as herein.
摘要:
The present invention relates to a hydrazone compound of the formula (I) or its salt, a process for its preparation, an intermediate of the formula (II-5), a pesticidal composition containing said hydrazone compound or its salt as the active ingredient, and a pesticidal method of applying an effective amount thereof: ##STR1##
摘要:
A compound selected from those of formula (I): ##STR1## in which R represents straight-chain or branched lower (C.sub.1 -C.sub.6) alkyl, (C.sub.3 -C.sub.8) cycloalkyl, optionally substituted phenyl, pyridyl or naphthyl, andR.sub.1 and R.sub.2, which are the same or different, each represents hydrogen, straight-chain or branched (C.sub.1 -C.sub.6) alkyl, or straight-chain or branched (C.sub.1 -C.sub.6) acyl,an enantiomer, diastereoisomer and epimer, and an addition salt thereof with a pharmaceutically-acceptable acid.Medicinal product, which is useful as .alpha..sub.2 -antagonist.