Abstract:
The present invention includes methods for the synthesis of sphingomyelins and dihydrosphingomyelins. The present invention also includes methods for the synthesis of sphingosines and dihydrosphingosines. The present invention further includes methods for the synthesis of ceramides and dihydroceramides.
Abstract:
Embodiments of the invention include a phosphorus containing flame retardant which may be the reaction product of a reaction mixture where the reaction mixture includes at least one first polyol and at least one phosphorus containing compound having the general formula (1), (2) or combination thereof:
Abstract:
An improved process for the synthesis of zerovalent nickel catalyst useful for the hydrocyanation of olefins, wherein catalyst formation is improved by applying sonication during formation of catalyst. The sonication may be applied to the catalyst reactant mixture containing elemental nickel and a ligand; or alternatively, the sonication may be applied to the elemental nickel prior to the addition of ligand to the reaction mixture.
Abstract:
Phosphite-borane compounds of formula (I) wherein each R1 is independently selected from: H; C1-C10 alkyl; alkylaryl; aralkyl; aryl; monovalent metal ions; nucleosides; and quaternary ammonium ions, (R4)4N+, in which the substituents R¿4? of the ammonium nitrogen atom are H or C1-C10 alkyl; R2 is H or C1-C10 alkyl; and R3 is CNCH2CH3?+BF¿4-, COOH, carboxyl salts, COOR¿5?, or CONHR5, wherein R5 is C1-C10 alkyl, alkylaryl, aralkyl, or aryl; with the proviso that if at least one of the R1 substituents is H, nucleoside, monovalent metal ion, or quaternary ammonium ion, then R3 may also be CN. The phosphorous-boron adducts of the invention are bioactive in character, variously exhibiting anti-tumor, anti-inflammatory, and hypolipidemic activity. Also disclosed are various synthetic methods for making such phosphorous-boron compounds, and for formulating same in unit dosage forms as well as other pharmaceutically and pharmacologically acceptable formulations.
Abstract:
The present invention provides novel compounds and pharmaceutical compositions suitable for administration to mammals, for the prevention and/or treatment of cancer, precancerous conditions, pain, fever, skin disorders, inflammation-related diseases and/or cardiovascular diseases. The compounds of the invention have improved efficacy and safety, including higher potency and/or fewer or less severe side effects, than conventional therapies. These comprise a biologically active moiety or portion (A) preferably derived from a non-steroidal anti-inflammatory drug or NSAID (A), bound via a linker moiety (B) to functional moiety Z, which facilitates access of the compound into cells. The moiety Z can comprise, for example, a phosphorous-containing group, a nitrogen-containing group, or a folic acid residue.
Abstract:
The invention relates to a method for producing compounds of formula X(1-a) R a P (OR )2 (I) or X(2-a) R a P (OR ) (II), wherein X: Cl, Br, J; R : an organic radical; R : an organic radical; and a: 0.1, characterised in that a) a compound (III) of formula PX(3-a)R a is reacted with a compound (IV) of formula R OH at temperatures of 10 to 200 DEG C, the molar ratio of the X radicals used to compound (IV) being 1:10 to 10:1, to obtain a mixture (V) containing compound (I) and compound (II), b) compounds (I) and (II) are separated from the mixture (V) and c) compound (I) or compound (II) is returned to step (a).
Abstract:
An improved process for the synthesis of zerovalent nickel catalyst useful for the hydrocyanation of olefins, wherein catalyst formation is improved by applying sonication during formation of catalyst. The sonication may be applied to the catalyst reactant mixture containing elemental nickel and a ligand; or alternatively, the sonication may be applied to the elemental nickel prior to the addition of ligand to the reaction mixture.
Abstract:
Phosphite-borane compounds of formula (I) wherein each R1 is independently selected from: H; C1-C10 alkyl; alkylaryl; aralkyl; aryl; monovalent metal ions; nucleosides; and quaternary ammonium ions, (R4)4N+, in which the substituents R¿4? of the ammonium nitrogen atom are H or C1-C10 alkyl; R2 is H or C1-C10 alkyl; and R3 is CNCH2CH3?+BF¿4-, COOH, carboxyl salts, COOR¿5?, or CONHR5, wherein R5 is C1-C10 alkyl, alkylaryl, aralkyl, or aryl; with the proviso that if at least one of the R1 substituents is H, nucleoside, monovalent metal ion, or quaternary ammonium ion, then R3 may also be CN. The phosphorous-boron adducts of the invention are bioactive in character, variously exhibiting anti-tumor, anti-inflammatory, and hypolipidemic activity. Also disclosed are various synthetic methods for making such phosphorous-boron compounds, and for formulating same in unit dosage forms as well as other pharmaceutically and pharmacologically acceptable formulations.
Abstract:
Die vorliegende Erfindung betrifft neuartige Verbindungen zur Härtung und beschleunigten Härtung von Epoxidharzen gemäß Formel (I) wobei für die Reste R 1 , R 2 , R 3 , R 6 , X und Indizes m, n, p gleichzeitig oder unabhängig voneinander gilt: R 1 , R 2 = gleichzeitig oder unabhängig voneinander Wasserstoff oder Alkyl, R 3 = Alkyl, Aryl, -O-Aryl, -O-Alkylaryl oder -O-Arylalkyl, R 6 = Wasserstoff, Alkyl oder -NHC(0)NR 1 R 2 , X = Sauerstoff oder Schwefel, m = 1, 2 oder 3, n = 0, 1 oder 2, wobei gilt: m + n = 3 p = 0, 1 oder 2.