Abstract:
A process is disclosed for making CF3CF═CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF═CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.
Abstract:
A molecular probe comprises two arsenic atoms and at least one cyanine based moiety. A method of producing a molecular probe includes providing a molecule having a first formula, treating the molecule with HgOAc, and subsequently transmetallizing with AsCl3. The As is liganded to ethanedithiol to produce a probe having a second formula. A method of labeling a peptide includes providing a peptide comprising a tag sequence and contacting the peptide with a biarsenical molecular probe. A complex is formed comprising the tag sequence and the molecular probe. A method of studying a peptide includes providing a mixture containing a peptide comprising a peptide tag sequence, adding a biarsenical probe to the mixture, and monitoring the fluorescence of the mixture.
Abstract:
The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and micelles comprising the same.
Abstract:
Disclosed is a vaccine against diseases, particularly tumor diseases, being associated with an enhanced heparanase expression and/or activity, wherein the vaccine contains a heparanase peptide, which binds to a HLA molecule.
Abstract:
Peptide-based compounds including heteroatom-containing, three-membered rings efficiently and selectively inhibit specific activities of N-terminal nucleophile (Ntn) hydrolases. The activities of those Ntn having multiple activities can be differentially inhibited by the compounds described. For example, the chymotrypsin-like activity of the 20S proteasome may be selectively inhibited with the inventive compounds. The peptide-based compounds include at least three peptide units, an epoxide or aziridine, and functionalization at the N-terminus. Among other therapeutic utilities, the peptide-based compounds are expected to display anti-inflammatory properties and inhibition of cell proliferation.
Abstract:
3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converted 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
Abstract:
The present invention is directed to a 1,4-benzothiepine 1,1-dioxide compound of formula I in which the radicals have the meanings defined herein, or a pharmaceutically acceptable salt or physiologically functional derivative thereof, with at least one other active ingredient, or a pharmaceutically acceptable salt or physiologically functional derivative thereof. The invention is also directed to the use of the combination product, pharmaceutical composition comprising the combination product and method for preparing the pharmaceutical composition.
Abstract:
The invention relates to compounds of the general formula (I) and salts and physiologically functional derivatives thereof, wherein Y is —NRaRb, —NRcC═ONRaRb, —NRcC═SNRaRb, —NRcC═NRdNaRb, heterocycle, —C═ONRaRb, heterocycle, or aryl; n is 0 to 8; m is 0, or 1; r is 0 to 3; t is 0 to 3; X is O or N; Z is CH2, C═O, C═S or a single bond; Z1 is CO—R2, CS—R2, (CH2)t—R2 or the side-chain of a naturally occuring amino acid;, Z2 is CO—R2, CS—R2 or (CH2)t—R3 or the side-chain of a naturally occuring amino acid; Z3 is CO—R2, CS—R2 or (CH2)t—R4 or the side-chain of a naturally occuring amino acid; Z4 is H, alkyl, alkoxy, or cycloalkyl; R1, R2, R3, and R4 are independently from each other H, OH, SH, NH2, CN, NO2, alkyl, cycloalkyl, heterocycloalkyl, haloalkyl, alkylthio, haloalkyloxy, hydroxyalkyl, hydroxyalkylamino, alkylamino, alkylaryl, alkylsulfinyl, alkylsulfonyl, alkylthioalkyl, alkylsulfinylalkyl, alkylsulfonylalkyl, alkoxyalkyl, alkoxy, aryloxy, heteroaryl, aryl, or halogen.
Abstract translation:本发明涉及通式(I)的化合物及其盐和生理功能衍生物,其中Y是-NR a,R b, C-ON< b> b<<< C> C-SNR< b> b C 1 -C 6卤代烷基,杂环基,C 1 -C 6 - 杂环或芳基;杂环或芳基; n为0〜8; m为0或1; r为0〜3; t为0〜3; X是O或N; Z是CH 2,C-O,C-S或单键; Z 1是CO-R 2,CS-R 2,(CH 2)2, / SUB> -R 2或天然存在的氨基酸的侧链; Z 2是CO-R 2,CS- R 2或(CH 2)2 -TH 3或天然存在的氨基酸的侧链 ; Z 3是CO-R 2,CS-R 2或(CH 2 CH 2) / SUB→4或天然存在的氨基酸的侧链; Z 4是H,烷基,烷氧基或环烷基; R 1,R 2,R 3和R 4彼此独立地为H,OH,SH ,NH 2,CN,NO 2,烷基,环烷基,杂环烷基,卤代烷基,烷硫基,卤代烷氧基,羟烷基,羟烷基氨基,烷基氨基,烷基芳基,烷基亚磺酰基,烷基磺酰基,烷硫基烷基,烷基亚磺酰基烷基 烷基磺酰基烷基,烷氧基烷基,烷氧基,芳氧基,杂芳基,芳基或卤素。
Abstract:
Disclosed are methods for providing enhanced systemic blood concentrations of orally delivered drugs that are incompletely translocated across the intestinal wall of an animal. Also disclosed are methods for the sustained release of drugs, whether poorly or readily bioavailable via oral delivery to animals. Still further, disclosed are compounds and pharmaceutical compositions that are used in such methods.
Abstract:
An oxadiazole derivative of formula (I) and a non-toxic salt thereof, wherein R is hydrogen, alkyl, CycA, etc.; AA1 is a single bond, amino acid residue, etc.; AA2 is a single bond, amino acid residue, etc.; R7 and R8 are hydrogen, alkyl, etc.; R9 is hydrogen, alkyl, etc.; R10 is hydrogen, alkyl, etc.). The compound of formula (I) has an inhibitory activity against cysteine protease and therefore it is useful as an agent for the prophylaxis and/or treatment of inflammatory diseases, diseases induced by apoptosis, diseases induced by disorders of immune responses, autoimmune diseases, diseases induced by decomposition of proteins which compose organism, shock, circulatory system disorders, blood coagulation system disorders, malignant tumors, acquired immune deficiency syndrome (AIDS) and AIDS-related complex (ARC), parasitic diseases, nerve degeneration diseases, pulmonary disorders, bone resorption diseases, endocrinesthenia, etc.
Abstract translation:式(I)的恶二唑衍生物及其无毒盐,其中R为氢,烷基,CycA等; AA 1是单键,氨基酸残基等; AA 2是单键,氨基酸残基等; R 7和R 8是氢,烷基等; R 9为氢,烷基等; R 10是氢,烷基等)。 式(I)化合物对半胱氨酸蛋白酶具有抑制活性,因此可用作预防和/或治疗炎性疾病,由凋亡诱导的疾病,由免疫应答障碍引起的疾病,自身免疫性疾病,疾病 由构成有机体的蛋白质,休克,循环系统疾病,凝血系统疾病,恶性肿瘤,获得性免疫缺陷综合征(AIDS)和AIDS相关复合物(ARC),寄生虫病,神经变性疾病,肺功能障碍,骨骼 吸收疾病,内分泌等