摘要:
A polyprenyl compound terminated with a group of ##STR1## is novel and useful as an antihypercholesterolemic agent and an antiarteriosclerotic agent, in which X is a group of the formula ##STR2## wherein K and L are independently a hydrogen atom or form a single valence bond between the carbon atoms to which they are attached, a group represented by the formula --CH.sub.2 -- or a group represented by the formula --(CH.sub.2).sub.2 --, m is an integer of 0 or 1, and R stands for a hydroxy group, a group represented by the Formula ##STR3## wherein R.sup.1 and R.sup.2 may be the same or different and each stands for a hydrogen atom or a lower alkyl group and p stands for an integer of 1 or 2, a group represented by the formula --NH--(CH.sub.2).sub.q --OH (wherein q denotes an integer of 1 or 2) or a group represented by the formula ##STR4##
摘要:
Preparation of a fluorocarbon compound used to make a soil-resistant yarn is improved by removing most of the impurities from the fluoro-carbon compound mass with heat and vacuum after the final washing step and then adding an emulsifier to the fluorocarbon compound mass so that the mass can be handled as a liquid concentrate rather than a tacky solid.
摘要:
The present invention is a new tyrosine derivative described below to inhibit hydrolysis of polysulfide. The new tyrosine derivative formed according to a chemical formula indicated below, wherein one of a-c is “OH” and the rest are “H”;
d is CnH2nα, where α is “H” or a “halogen atom,” the halogen atom is preferably “I,” and n is an integer from 1 to 5; and
e is (NH)x(CO)yCzH2zβ, where x is 1 or 0, y is 1 or 0, z is an integer from 1 to 5, β is “H” or a “halogen atom,”.
摘要:
A compound has Structure I: where R1 and R2 independently are C2-C12 alkyl groups, R3 and R3′ independently are H or CH3, X1 is a C4-C28 alkyl or alkenyl group, and R4 is H or a N,N-bis((meth)acryloylalkyl)-amide group having Structure II: where R5 and R6 independently are C2-C12 alkyl groups, and R3″ and R3′″ independently are either H or CH3.
摘要:
A compound has Structure I: where R1 and R2 independently are C2-C12 alkyl groups, R3 and R3′ independently are H or CH3, X1 is a C4-C28 alkyl or alkenyl group, and R4 is H or a N,N-bis((meth)acryloylalkyl)-amide group having Structure II: where R5 and R6 independently are C2-C12 alkyl groups, and R3″ and R3′″ independently are either H or CH3.
摘要:
A compound selected from those of formula (I): Medicinal products containing the same which are useful in the treatment of disorders of the melatoninergic system.
摘要:
Surfactant mixtures having improved surface-active properties containing a) fatty acid-N-alkyl polyhydroxyalkylamides corresponding to formula (I): ##STR1## in which R.sup.1 CO is an aliphatic acyl radical containing 6 to 10 carbon atoms, R.sup.2 is hydrogen, an alkyl or hydroxyalkyl radical containing 1 to 4 carbon atoms and �Z! is a linear or branched polyhydroxyalkyl radical containing 3 to 12 carbon atoms and 3 to 10 hydroxyl groups, and b) fatty acid-N-alkyl polyhydroxyalkylamides corresponding to formula (II): ##STR2## in which R.sup.3 CO is an aliphatic acyl radical containing 12 to 22 carbon atoms, R.sup.4 is hydrogen, an alkyl or hydroxyalkyl radical containing 1 to 4 carbon atoms and �Z! is a linear or branched polyhydroxyalkyl radical containing 3 to 12 carbon atoms and 3 to 10 hydroxyl groups, the ratio by weight between components a) and b) being from 80:20 to 20:80.
摘要:
The invention relates to new compounds of the formula ##STR1## in which R.sup.1 denotes (C.sub.1 -C.sub.8)-alkyl, R.sup.2 denotes an amino acid residue which is protected with a urethane protective group which can be eliminated with weak acid or base, or denotes an amino protective group which can be eliminated with weak acid or base, R.sup.3 denotes hydrogen or (C.sub.1 -C.sub.4)-alkyl, and Y.sup.1 -Y.sup.9 denote identical or different radicals hydrogen, (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.4)-alkoxy or --O--(CH.sub.2).sub.n --COOH (with n=1 to 6), with one of these radicals being --O--(CH.sub.2).sub.n --COOH, or Y.sup.1, Y.sup.2 and Y.sup.5 -Y.sup.9 denote identical or different radicals hydrogen, (C.sub.1 -C.sub.4)-alkyl or (C.sub.1 -C.sub.4)-alkoxy, Y.sup.3 denotes hydrogen or (C.sub.1 -C.sub.8)-alkoxy and Y.sup.4 denotes --(CH.sub.2).sub.n --COOH or --NH--CO--(CH.sub.2).sub.n --COOH (with n=1 to 6).Processes for the preparation thereof and the synthesis of peptide amides by a solid-phase method using these new compounds (spacers) are described.