摘要:
The invention provides methods for detection of medical disorders, associated with cellular oxidative stress, cell degeneration and / or cell death. The invention further relates to compounds comprising a thiol (-SH) group, for detecting cells undergoing oxidative stress, degeneration and / or a death process. The invention further provides methods for utilizing the compounds in medical practice, for diagnostic and therapeutic purposes.
摘要:
Methods of removing alkyl alkanesulfonate esters from aqueous or anhydrous compositions are provided. The invention provides methods for the conversion of alkyl alkanesulfonate esters of the formula RSO3R’ to the corresponding acids of the formula RSO3H. The alkyl alkanesulfonate esters are present in an organic medium, which may contain significant amounts of water or which may be anhydrous or substantially anhydrous. In some embodiments, the invention provides methods for purifying aqueous or anhydrous alkanesulfonic acids by removing alkyl alkanesulfonate esters.
摘要:
This invention relates to a process for producing a substantially pure disulfide compound of Formula (II) R5-S-S-R2 as disclosed herein, such as disodium 2,2'-dithiobis ethane sulfonate, by an efficient procedure from available, relatively inexpensive raw materials.
摘要:
The invention concerns a method for sulphonation of a compound having one or several free hydroxyl functions and/or one or several substituted or unsubstituted primary or secondary amine functions. The invention is characterized in that it comprises treating said compound with the SO3-DMF complex in the presence of an acid capturing agent. The acid capturing agent is advantageously selected in the group comprising alkenes or alkines with boiling point lower than 100 DEG C or a mixture thereof.
摘要:
Acetyl anhydrides such as acetyl sulfate are produced by a process for comprising contacting methane and carbon dioxide in an anhydrous environment in the presence of effective amounts of a transition metal catalyst and a reaction promoter, and an acid anhydride compound, and optionally an acid. The acetyl anhydride can be contacted with water to produce acetic acid or with an alcohol to produce a product comprising an acetate ester and that may also comprise acetic acid. Optionally, water in stoichiometric amounts or less, with respect to the acetic anhydride, may be fed to a continuous process of this type to produce some acetic acid in situ.
摘要:
3-Arylphenyl sulfide derivatives represented by general formula (I) and insecticides and miticides containing these derivatives as the active ingredient, wherein R represents C2-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, etc.; B0 to B2 and B3 represent each hydrogen, halogeno, cyano, C1-4 haloalkyl, etc.; n is 0, 1 or 2; and Ar represents a phenyl, thiophene or pyrazole ring, etc.
摘要:
Compounds having formula (I) or a pharmaceutically acceptable salt thereof wherein R1 is (a) hydrogen, (b) lower alkyl, (c) alkenyl, (d) alkoxy, (e) thioalkoxy, (f) halo, (g) haloalkyl, (h) aryl -L2-, and (i) heterocyclic -L2-; R2 is selected from (a) formula (1), (b) -C(O)NH-CH(R14)-C(O)OR15, (c) formula (2), (d) -C(O)NH-CH(R14)-C(O)NHSO2R16, (e) -C(O)NH-CH(R14)-tetrazolyl, (f) -C(O)NH-heterocyclic, and (g) -C(O)NH-CH(R14)-C(O)NR17R18; R3 is substituted or unsubstituted heterocyclic or aryl, substituted or unsubstituted cycloalkyl or cycloalkenyl, formula (3), and -P(W)R?R3RR3'; R¿4 is hydrogen, lower alkyl, haloalkyl, halogen, aryl, arylalkyl, heterocyclic, or (heterocyclic)alkyl; L1 is absent or is selected from (a) -L4-N(R5)-L5-, (b) -L4-O-L5-, (c) -L4-S(O)n-L5-, (d) -L4-L6-C(W)-N(R5)-L5-, (e) -L4-L6-S(O)m-N(R5)-L5-, (f) -L4-N(R5)-C(W)-L7-L5-, (g) -L4-N(R5)-S(O)p-L7-L5-, (h) optionally substituted alkylene, (i) optionally substituted alkenylene, (j) optionally substituted alkynylene, (k) a covalent bond, (1) formula (4), and (m) formula (5) are inhibitors of protein isoprenyl transferases. Also disclosed are protein isoprenyl transferase inhibiting compositions and a method of inhibiting protein isoprenyl transferases.