摘要:
A class of substituted triazolopiperazine compounds represented by formula (I), tautomers, enantiomers, diastereomers, racemates, metabolites, metabolic precursors, and pharmaceutically acceptable salts, esters, prodrugs or hydrate thereof, a preparation methods therefor, intermediates and a use thereof in the preparation of drugs for prevention and treatment of diseases associated with PARP including various ischemic diseases, neurodegenerative diseases and cancers.
摘要:
The present invention relates to thiazole compounds of formula I, the method for preparation and use thereof. More specifically, the present invention relates to novel derivatives of natural product largazole, the method for preparing them and their uses for treatments against tumor and multiple sclerosis as inhibitors of histone deacetylase.
摘要:
The present invention provides a compound of formula I: a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
摘要:
Provided are a camptothecin compound containing 7-membered lactone ring, as shown in general formula I, and pharmaceutically acceptable salt thereof, as well as the preparation method and use thereof. In general formula I, R1 is H, a C1˜C3 alkyl, acetyl or propionyl; R2 is H, a C1˜C6 alkyl, a C3˜C6 cycloalkyl, piperidyl; or a C1˜C6 alkyl substituted by an amino; R3 is H, a C1˜C3 alkyl, or a C1˜C6 alkyl substituted by an amino; R4 is H, a hydroxyl, or a C1˜C6 alkoxy; R5 is H, or a C1˜C6 alkoxyl; or R4 and R5 are linked to each other to form —OCH2O— or —OCH2CH2O—. The compound has good anti-tumor activity, and can be clinically used via oral administration, intravenous injection, and intramuscular injection, among others.
摘要:
The present invention contemplates various devices that are configured to separate a sample, which contains more than one unique species, into any desired number of sub-samples by passing the sample across a like number of separation media configured for a first separation protocol. Each of the sub-samples may be further separated by an additional separation protocol, thereby creating a plurality of mini-samples, each of which may be further separated and/or analyzed. The invention also contemplates using a simple method of using conduits to form a fluid path that passes through a plurality of separation media, each of which media is configured to isolate a particular sub-sample. After various sub-samples of the sample are isolated by the various separation media, the conduits may be removed, thereby enabling each of the isolated sub-samples to be further separated and/or analyzed independent of any other sub-sample.
摘要:
Method and apparatus for etching a metal layer disposed on a substrate, such as a photolithographic reticle, are provided. In one aspect, a method is provided for processing a substrate including positioning a substrate having a metal layer disposed on an optically transparent material in a processing chamber, introducing a processing gas processing gas comprising an oxygen containing gas, a chlorine containing gas, and a chlorine-free halogen containing gas, and optionally, an inert gas, into the processing chamber, generating a plasma of the processing gas in the processing chamber, and etching exposed portions of the metal layer disposed on the substrate.
摘要:
The invention discloses novel sulfur-containing naphthalimide derivatives, and the preparation and uses thereof. The conjugated plane of naphthalimide derivatives of the invention is enlarged by incorporating 5- or 6-membered heteroaromatic ring and/or introducing S heteroatom, thus increasing the anti-tumor activity of naphthalimide. The compounds of the invention displays significant inhibiting activities to the proliferation of various tumor cells such as human lung cancer, gastric cancer, liver cancer, leucocythemia and the like. The inhibition of cell proliferation is dose-dependent.
摘要:
The invention relates to triptolide derivatives of Formula (I), their pharmaceutically acceptable salts and optical isomers, Formula (I): wherein, C5 and C6 connect with each other by a C—C single bond or double bond; when C5 and C6 are connected with C—C single bond, X and Y represents independently hydrogen, oxygen, hydroxyl, halogen, lower alkyl-oxy, lower alkyl-amino, mercapto, lower alkyl-thio, the group of formula —OCOR, —OSO2R or —OPO(OH)2, each of which is attached to C5 and C6, R represents —(CH2)nCO2Na, —(CO2)nCO2K, or —(CH2)nCH3, wherein n=1-6; Z represents hydrogen, oxygen, hydroxyl, halogen, lower alkyl-oxy, lower alkyl-amino, mercapto, lower alkyl-thio, the group of formula —OCOR, —OSO2R or —OPO(OH)2, each of which is linked at C14-position, R represents —(CH2)nCO2Na, —(CO2)nCO2K, or —(CH2)nCH2, wherein n=1-6; wherein, the “_” linked with X, Y, and Z represents “” or “”, but X and Y cannot both be hydrogen atom at the same time, the methods for preparing them and their use as antiphlogistic agent, immunosuppressive agent or therapeutic agent for other related diseases.
摘要:
Methods and apparatus for controlling the critical dimensions and monitoring the phase shift angles of photomasks. Critical dimensions measurement data before wafer processing and after wafer processing are collected by an integrated metrology tool to adjust the process recipe, to determine if the critical dimensions are in specification and to determine if additional etching is required. Phase shift angle and uniformity across substrate measurement after wafer processing are collected by an integrated metrology tool to determine if the phase shift angle and its uniformity are in specification. The real time process recipe adjustment and determination if additional etching is requires allow tightening of the process control. The phase shift angle and uniformity monitoring allows in-line screening of phase shift photomasks.
摘要:
A dielectric etch process applicable etching a dielectric layer with an underlying stop layer. It is particularly though not necessarily applicable to forming a dual-damascene interconnect structure by a counterbore process, in which a deep via is etched prior to the formation of a trench connecting two of more vias. A single metallization fills the dual-damascene structure. The substrate is formed with a lower stop layer, a lower dielectric layer, an upper stop layer, and an upper dielectric layer. For example, the dielectric layers may be silicon dioxide, and the stop layers, silicon nitride. The initial deep via etch includes at least two substeps. A first substep includes a non-selective etch through the upper stop layer followed by a second substep of selectively etching through the lower dielectric layer and stopping on the lower stop layer. The first substep may be preceded by yet another substep including a selective etch part ways through the upper dielectric layer. For the oxide/nitride compositions, the selective etch is based on a fluorocarbon and argon chemistry, preferably with a lean etchant of CHF3 combined with a polymer former, such as C2F6, C4F8, or CH2F2, and the non-selective etch includes a fluorocarbon or hydrocarbon, argon and an oxygen-containing gas, such as CO. The counterbore etch is preferably performed in a high-density plasma reactor which allows the plasma source region to be powered separately from a sheath bias located adjacent to the wafer pedestal.
摘要翻译:电介质蚀刻工艺可以用下面的停止层蚀刻电介质层。 特别地,不一定适用于通过沉孔工艺形成双镶嵌互连结构,其中在形成连接两个更多通孔的沟槽之前蚀刻深通孔。 单一的金属化填充了双镶嵌结构。 衬底形成有下停止层,下介电层,上阻挡层和上电介质层。 例如,电介质层可以是二氧化硅,并且阻挡层,氮化硅。 初始深通孔蚀刻包括至少两个子步骤。 第一子步骤包括通过上停止层的非选择性蚀刻,然后是选择性蚀刻穿过下介电层并停止在下停止层上的第二子步骤。 第一子步骤之前可以有另一子步骤,其中包括通过上电介质层的选择性蚀刻部分。 对于氧化物/氮化物组合物,选择性蚀刻基于碳氟化合物和氩气化学,优选用与聚合物形成剂如C 2 F 6,C 4 F 8或CH 2 F 2结合的CHF 3的贫蚀刻剂,并且非选择性蚀刻包括碳氟化合物 或烃,氩气和含氧气体,例如CO。沉孔蚀刻优选在高密度等离子体反应器中进行,其允许等离子体源区域与位于晶片基座附近的护套偏压分开供电。