摘要:
본 발명은 아데노신 유도체, 이의 제조방법 및 이를 유효성분으로 함유하는 암의 예방 또는 치료용 약학적 조성물에 관한 것으로, 본 발명에 따른 아데노신 유도체는 A3 아데노신 수용체의 효능제(agonist)로서 높은 친화력 및 선택성을 갖고, 간암 세포 SK-HEP-1을 이용한 암세포 이식 누드마우스 실험 동물 모델에서 종래에 알려진 A3 아데노신 수용체의 효능제와 비교하여 현저히 우수한 종양 성장 억제효능이 있어 암의 예방 또는 치료용 약학적 조성물로 유용하게 사용될 수 있다.
摘要:
A compound of formula (I) as described herein and methods and uses thereof as probes in the mass tagging of biosensors or biologically active materials for use in mass cytometry analysis of tissue samples such as in the detection, labelling and quantification of oxygen-deprived cells by using, for example, tellurophene-tagged 2-nitroimidazole.
摘要:
Forming multifunctional materials and composites thereof includes contacting a first material having a plurality of oxygen-containing functional groups with a chalcogenide compound, and initiating a chemical reaction between the first material and the chalcogenide compound, thereby replacing oxygen in some of the oxygen-containing functional groups with chalcogen from the chalcogen-containing compound to yield a second material having chalcogen-containing functional groups and oxygen-containing functional groups. The first material is a carbonaceous material or a macromolecular material. A product including the second material is collected and may be processed further to yield a modified product or a composite.
摘要:
Provided are chalcogenoxanthylium compounds which can effectively be used as sensitizers in photodynamic therapy, virucides in photodynamic antimicrobial chemotherapy and reversal agents of Pgp function in cancer cells. Further provided is a general method for the preparation of chalcogenoxanthylium compounds.
摘要:
A cation or acid generator which, upon irradiation with energy rays, can generate cations or an acid with high sensitivity and which is suitable for use in chemical amplification type resist materials. It comprises an energy-ray-sensitive fluoroalkylonium salt represented by the formula (1) in which R to R (each is alkyl, aryl, etc.) and Rf (fluoroalkyl) are bonded to the central element A (iodine, sulfur, selenium, tellurium, nitrogen, or phosphorus). Also provided is a chemical amplification type resist material which contains the acid generator.
摘要:
A method for synthesizing Salacinol, its stereoisomers, and non-naturally occurring selenium and nitrogen analogues thereof having formula (I). The compounds are potentially useful as glycosidase inhibitors. The synthetic schemes comprise reacting a cyclic sulfate with a 5-membered ring sugar containing a heteroatom (X). The heteroatom preferably comprises sulfur, selenium, or nitrogen. The cyclic sulfate and ring sugar reagents may be readily prepared from carbohydrate precursors, such as D-glucose, L-glucose, D-xylose and L-xylose. The target compounds are prepared by opening of the cyclic sulfates by nucleophilic attack of the heteroatoms on the 5-membered ring sugars. The resulting heterocyclic compounds have a stable, inner salt structure comprising a heteroatom cation and a sulfate anion. The synthetic schemes yield various stereoisomers of the target compounds in moderate to good yields with limited side-reactions. In an alternative embodiment of the invention, the cyclic sulfate may be similarly reacted with a 6-membered ring sugar containing a heteroatom (X) to yield a compound having formula (XII).
摘要:
A transparent optical material containing at least one selenium atom; a plastic lens made of the optical material; processes for producing these; and novel selenium compounds useful for producing the transparent optical material and plastic lens and represented by general formula (1), formula (2): (Z ) q - (SH) r, or formula (4): (Z ) - (X ) s, wherein Y and Z each represents C, S, etc.; X represents a polymerizable functional group such as SH, NCO, or acryloyl; Z2 represents alkylene containing at least one Se atom; q is an integer of 1 to 20; r is an integer of 3 to 6; Z represents Se or alkylene containing at least one Se atom; X represents a functional group such as (meth)acrylol; and s is an integer of 2 to 6.
摘要翻译:含有至少一个硒原子的透明光学材料; 由光学材料制成的塑料透镜; 制作过程; 由通式(1),式(2):(Z 2)q - (SH)r或式(4)表示的用于制造透明光学材料和塑料透镜的新颖硒化合物:(Z < 3)) - (X 2)s,其中Y 1和Z 1各自表示C,S等; X 1表示可聚合官能团,例如SH,NCO或丙烯酰基; Z2表示含有至少一个Se原子的亚烷基; q为1〜20的整数, r为3〜6的整数; Z 3表示Se或含有至少一个Se原子的亚烷基; X 2表示官能团,例如(甲基)丙烯酰; s为2〜6的整数。
摘要:
A (haloalkyl)dibenzo-onium sulfonate represented by general formula (I). The use of the compound as a haloalkylating agent extremely facilitates the separation of the objective water-insoluble haloalkylated organic compound in the post-treatment step. The agent can be produced by using an industrially inexpensive raw material, since the raw material for synthesis thereof is easily available on an industrial scale or is easy to synthesize.