摘要:
A subject matter of the invention is cyanine derivatives of formula: in which the dotted lines represent the atoms necessary for the formation of one or two fused aromatic rings, each ring comprising 5 or 6 carbon atoms; R1, R2, R3 and R4 represent, independently of one another: H; substituted or unsubstituted C1-C15 alkyl; C1-C6 alkoxy; (C2-C12)dialkylamino; C1-C6 alkoxycarbonyl; di(C2-C12)alkylamido; a substituted or unsubstituted aryl, arylalkyl or aryloxy group; a halogen atom; a nitro; an L1-W, L2-M, L2-A or L2-G group; R5 and R6 represent, independently of one another: substituted or unsubstituted C1-C15 alkyl; a substituted or unsubstituted aryl or arylalkyl group; an L1-W, L2-M, L2-A or L2-G group; X is chosen from: O, S or CR7R8; Y is chosen from: O, S or CR9R10; R7, R8, R9 and R10 independently represent: substituted or unsubstituted C1-C15 alkyl; substituted or unsubstituted aryl, arylalkyl or aryloxy; an L1-W, L2-M, L2-A or L2-G group; R7 and R8 and/or R9 and R10 can also together form a ring comprising 5 or 6 atoms or a heterocycle comprising 4 to 5 carbon atoms and an oxygen atom; B represents a polymethine bridge comprising 1 to 5 methine groups, said groups being in particular individually unsubstituted or substituted by a substituted or unsubstituted C1-C15 alkyl; a substituted or unsubstituted aryl, arylalkyl or aryloxy group; a nitro group; an L1-W, L2-M, L2-A or L2-G group; L1 and L2 are connecting arms; G is a reactive group; A is a coupling agent; M is a conjugated molecule, W is a phosphate or phosphonate ester (preferably diester), with the proviso that the cyanine derivative comprises at least one L1-W group and at least one L2-A, L2-G or L2-M group.
摘要:
The present invention relates to S1P analogs that have activity as S1P receptor modulating agents and the use of such compounds to treat diseases associated with inappropriate S1P receptor activity. The compounds have the general structure: wherein R11 is C5-C18 alkyl or C5-C18 alkenyl; Q is C3-C6 optionally substituted cycloalkyl, C3-C6 optionally substituted heterocyclic, C3-C6 optionally substituted aryl C3-C6 optionally substituted heteroaryl or —NH(CO)—; R3 is H, C1-C4 alkyl, (C1-C4 alkyl)OH or (C1-C4 alkyl)NH2; R23 is H or C1-C4 alkyl, and R15 is hydroxy, phosphonate, or wherein X and R12 is O or S; or a pharmaceutically acceptable salt or tautomer thereof.
摘要:
A process for preparing molybdenum phosphosulfurized hydrocarbon compositions by reacting an aqueous solution of a molybdenum compound with a phosphosulfurized hydrocarbon.
摘要:
Dialkyl or diaryl phosphonothioic halides are prepared by contacting an alkyl or aryl halide, respectively, with phosphorus sesquisulfide, P.sub.4 S.sub.3, under at least autogenous pressure at a temperature of from about 200.degree. to about 400.degree. C. The compounds obtained are useful as pesticides and as intermediates in preparation of pesticides and other organo-phosphorus compounds.
摘要:
This invention relates to a novel lubricant oil addition agent which is a phosphosulfurized C.sub.35 to C.sub.160 hydrocarbon modified N-(hydroxy and C.sub.50 - C.sub.160 alkyl-substituted benzyl) alkylene polyamine. Such novel addition agent imparts anti-oxidant and unexpected dispersancy functions to lubricant oils commonly used as crankcase lubricants for internal combustion engines. Such novel addition agent also imparts anti-oxidant and detergency functions to the less viscous oils used to lubricate automatic transmissions and at the same time prevent failure of the rubber seals used therein from deterioration (hardening) by oxidation and distortion softening by undue swelling. The present inventive addition agent unexpectedly provides both detergency and an anti-oxidant functions for lubricant oil which are superior to the related analog addition agent derived from the reaction of one molar proportion of a phosphosulfurized 500 to 2800 (Staudinger) molecular weight hydrocarbon with from 0.5 up to 4 molar proportion of an N-(hydroxy and C.sub.4 - C.sub.24 alkyl-substituted benzyl) alkylene polyamine.
摘要:
The reaction product of an alkyl tallate, sulfur and dialkyl phosphonate is found to function as an extreme pressure additive in lubricating compositions.
摘要:
Phosphorothionyl disulphides are prepared by reacting an organic thiophosphoric acid with hydrogen peroxide under conditions such that either the thiophosphoric acid is added to the hydrogen peroxide or the thiophosphoric acid and hydrogen peroxide are introduced into the reaction vessel such that there is never more than 10 mole % excess of thiophosphoric acid (compared with the hydrogen peroxide) added to the reaction vessel. In this manner phosphorothionyl disulphides which are useful as ashless lubricating oil antioxidants and anti-wear additives, can be prepared in good yield and with very low acid number.