Reagents and methods for direct labeling of nucleotides
申请人:Naleway John J.
公开号:US20130150254A1
公开(公告)日:2013-06-13
The present invention provides systems and methods for production of activatable diazo-derivatives for use in labeling nucleotides. Labeling nucleotides is accomplished by contacting a stable hydrazide derivative of a detectable moiety with an activating polymer reagent which is used to directly label the nucleotide sample. Labeling occurs on the phosphate backbone of the nucleotide which does not perturb hybridization of the labeled nucleotide with its anti-sense strand. Since the method involves direct labeling, all types of nucleotides can be labeled without prior amplification or alteration.
REAGENTS AND METHODS FOR DIRECT LABELING OF NUCLEOTIDES
申请人:MARKER GENE TECHNOLOGIES, INC.
公开号:US20150152476A1
公开(公告)日:2015-06-04
The present invention provides systems and methods for production of activatable diazo-derivatives for use in labeling nucleotides. Labeling nucleotides is accomplished by contacting a stable hydrazide derivative of a detectable moiety with an activating polymer reagent which is used to directly label the nucleotide sample. Labeling occurs on the phosphate backbone of the nucleotide which does not perturb hybridization of the labeled nucleotide with its anti-sense strand. Since the method involves direct labeling, all types of nucleotides can be labeled without prior amplification or alteration.
O-, N- and carboxyl derivatives of thienamycin sulfoxide and sulfone, their preparation and pharmaceuticals containing said compounds
申请人:Merck & Co., Inc.
公开号:EP0001265A1
公开(公告)日:1979-04-04
Disclosed are O-, N- and substituted carboxyl derivatives of thienamycin sulfoxide (I, n =1) and thienamycin sulfone (I, n=2):
wherein n is 1 or 2; R and R are independently selected from hydrogen and acyl; R is, interalia, hydrogen, acyl or alkyl; X is O or NR; and R is, inter alia, hydrogen or a pharmaceutically acceptable salt or ester moiety. Such derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such derivatives, pharmaceutical compositions comprising such derivatives and methods of treatment comprising administering such derivatives and compositions when an antibiotic effect is indicated.
公开了噻吩霉素亚砜(I,n =1)和噻吩霉素砜(I,n =2)的 O-、N-和取代的羧基衍生物:
其中 n 为 1 或 2;R 和 R 独立选自氢和酰基;R 除其他外为氢、酰基或烷基;X 为 O 或 NR;R 除其他外为氢或药学上可接受的盐或酯分子。此类衍生物可用作抗生素。此外,还公开了制备此类衍生物的工艺、包含此类衍生物的药物组合物以及治疗方法,包括在需要抗生素效果时施用此类衍生物和组合物。
Phosphorus-containing compound
申请人:CHANG CHUN PLASTICS CO., LTD.
公开号:US20040077825A1
公开(公告)日:2004-04-22
A phosphorus-containing compound represented by formula (I) and a preparation method thereof are provided. An addition reaction is performed for an organic cyclic phosphorus compound with an aryl aldehyde compound, and then a condensation reaction is performed with an aryl compound having active hydrogen in the use of an organic acid as a catalyst to obtain the proposed phosphorus-containing compound. This phosphorus-containing compound can be used as a hardener for resin, and improves flame retardant properties and thermal resistance for a flame retardant epoxy resin composition, thereby suitably applied to resin compositions used for manufacturing printed circuit boards and laminated circuit boards in electronic or electric products.
1
Disclosed is a flame retarding resin composition comprising (A) one or more epoxy resins; (B) a hardener; and (C) a hardening accelerator, wherein the hardener of the component B is a phosphorus-containing compound represented by the following formula (I):
1
wherein each symbol is as defined below. The flame retarding resin composition of the present invention without adding halogen or other flame retardants has high flame retardancy and excellent heat resistance. The flame retarding resin composition of the present invention is suitably useful in the application of thermosetting resins, thermoplastic resins, bonding sheets, composite materials, laminated plates, printed circuit boards, copper foil adhesives, inks used for build-up process, semiconductor molding materials and the like.
本发明公开了一种阻燃树脂组合物,该组合物包含(A)一种或多种环氧树脂;(B)一种固化剂;以及(C)一种硬化促进剂,其中成分 B 的固化剂是由下式(I)表示的含磷化合物:
1
其中各符号定义如下。本发明的阻燃树脂组合物不添加卤素或其他阻燃剂,具有高阻燃性和优异的耐热性。本发明的阻燃树脂组合物适用于热固性树脂、热塑性树脂、粘合片、复合材料、层压板、印刷电路板、铜箔粘合剂、用于堆积工艺的油墨、半导体成型材料等。