摘要:
Disclosed are compounds having the ability to inhibit cytochrome P450 2A6, 2A13, and/or 2B6 and tobacco products comprising them. Also disclosed are pharmaceutical compositions comprising them.
摘要:
Compounds having the formula ##STR1## wherein ##STR2## R.sub.1 is hydrogen, benzyl or alkanoyl, X is C.sub.2-4 alkylene; andZ-W is alkyl, phenylalkyl or pyridylalkyl which can have an oxygen atom as part of the alkyl chain and their use as CNS agents, antidiarrheals and antiemetics. Processes for their preparation and intermediates therefor are described.
摘要:
Optically active organic compounds are prepared starting from optically inactive reactants by means of an optically active agent which influences the course of the reaction. In particular optically active compounds having a "meso" type carbon atom undergo an intramolecular ring closure in the presence of an optically active agent to yield an optically active product having one additional ring. The present process is particularly useful in the preparation of optically active bicyclic diketones which are important intermediates in the total synthesis of steroids.
摘要:
Compounds of the formula ##STR1## in which each R is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, hydroxy, cyano, or halo, and both R groups are identical and are symmetrically located; R.sub.1 is C.sub.1 -C.sub.3 alkyl and R.sub.2 is methyl, or R.sub.1 and R.sub.2 taken together are (CH.sub.2 --.sub.n in which n is an integer from 4 to 6; and (1) X.sub.c and X.sub.d are hydrogen, and the combination of X.sub.a and Y.sub.a and of X.sub.b and Y.sub.b each represents a double bond, subject to the limitation that, when R.sub.1 is C.sub.1 -C.sub.3 alkyl and is other than methyl, X.sub.c, X.sub.d, and R.sub.1 are all in an .alpha.-configuration; or (2) X.sub.a, X.sub.b, X.sub.c, X.sub.d, Y.sub.a, and Y.sub.b are hydrogen, subject to the limitation that both X.sub.c and X.sub.d are in an .alpha.-configuration, both X.sub.a and X.sub.b are in an .alpha.-configuration or in a .beta.-configuration, and, R.sub.1, when it is C.sub.1 -C.sub.3 alkyl, is in an .alpha.-configuration, are useful in inhibiting the action of androgens or are intermediates to such anti-androgen compounds.
摘要:
The present application relates to compounds and methods for reducing the severity of convulsant activity or epileptic seizures, or for the treatment of chronic or acute pain.
摘要:
The present invention relates to the use of garcinol as a nephroprotective agent. The present invention also relates to the use of garcinol as a therapeutic agent in renal disorders, in particular diabetic nephropathy, and to medicinal preparations containing garcinol. Further disclosed herein are method of treatment of renal disorders, in particular diabetic nephropathy by administration of garcinol.
摘要:
Cyclopentenones of formula ##STR1## wherein each of symbols R.sup.1 and R.sup.2, when taken separately, represents an alkyl radical of C.sub.1 to C.sub.6, or a hydrogen atom, or, when taken together, they represent a polymethylene, or one of them designates a hydrogen atom and the other an alkyl radical of C.sub.1 to C.sub.6, are prepared starting from compounds having formula ##STR2## wherein R stands for a C.sub.1 to C.sub.6 alkyl radical or a phenyl group, via a catalytic reaction promoted by a metallo-organic compound of formulaMeX.sub.2 (R.sup.3 CN).sub.2 (III)wherein Me represents palladium or platinum, R.sup.3 represents a C.sub.1 to C.sub.3 alkyl radical or a phenyl group and X defines a halogen atom.
摘要:
A compound of the general formula: ##STR1## wherein R.sup.1 is a lower alkyl group; R.sup.2 is H or a lower alkyl group; Y is an oxo group, H or an unprotected or protected hydroxyl group; X is a methylene or ethylene group, for example, 7,7a-dihydro-7aS-methyl-4-(3-butenyl)-1-tert. butoxy-5(6H)-indanone, which is an intermediate for steroids, is prepared by dehydrative cyclization of a compound of the general formula of ##STR2## wherein R.sup.1, R.sup.2, X and Y are the same as above.
WHEREIN N IS AN INTEGER HAVING AT LEAST THE VALUE 1, A'' is O, S or NB, B is hydrogen, or a substituted or unsubstituted alkyl group, or substituted or unsubstituted acyl or aryl, Q is hydrogen, a halogen, or an -OH group, or an alkyl, alkoxy, aryl, or carboxyl group, T is a halogen, or a hydroxyl, alkoxy, or substituted or unsubstituted aryl, W is hydrogen, or a halogen, or a hydroxyl, alkyl, alkoxy, substituted or unsubstituted aryl, or carboxyl group, X is a hydroxyl, alkoxy, substituted aryl, or a substituted or unsubstituted amino group, Y is hydrogen, or a halogen, or a hydroxyl, alkyl, alkoxy, substituted or unsubstituted aryl, or carboxyl group, Z'' is O or NB; these compounds are prepared by reacting a compound of formula:
WHEREIN A is -O-, -S- or NB, and Z is -OH or -NHB, with an alkali in an at least partially aqueous medium. The novel compounds thus obtained are useful against circulation and hepatic diseases.
摘要:
Disclosed herein are embodiments of a bi-functionalized dicyclopentadiene monomer and polymer embodiments formed therefrom. The monomer embodiments exhibit tunability and can be used to form thermally stable homopolymers, copolymers, and/or crosslinked polymers.