Abstract: Anticorrosive agent stable to hard water, which comprises an alkali metal salt, alkaline earth metal salt, or amine salt of a compound of the formula ##STR1## in which R.sub.1 is branched C.sub.6 -C.sub.13 -alkyl or C.sub.5 - or C.sub.6 -cycloalkyl, or polycycloalkyl having from 6 to 13 carbon atoms optionally substituted by 1 or 2 C.sub.1 -C.sub.4 -alkyl groups,R.sub.2 is hydrogen or C.sub.1 -C.sub.6 -alkyl, andR.sub.3 is C.sub.1 -C.sub.11 -alkylene in linear or branched chain.
Abstract: A method is provided for oxidatively cleaving .alpha.,.beta.-unsaturated cyclic ketones, such as isophorone, with an oxidizing agent, for example, ozone, and thereafter recovering the resulting keto acid. In instances where ozone is used, an aqueous hydroperoxide and phase transfer catalyst can be used to recover the keto acid. Dione cyclics, for example, dimedone, can be obtained by direct dehydration of the keto acid.
Abstract: The invention provides novel 2-adamantyl hydrazine derivatives of the general formula A ##STR1## In this formula R.sub.1 is hydrogen or a lower alkyl group of 1-4 carbon atoms; R.sub.2 and R.sub.3 are the same or different and are each hydrogen, an unsubstituted or substituted radical being a lower alkyl of 1-4 carbon atoms, a lower alkanoic acid radical of 2-4 carbon atoms or a lower alkyl ester thereof, adamantyl, aryl, aralkyl, in which the alkyl moiety has from 1-4 carbon atoms or an unsubstituted or substituted heterocyclic radical of aromatic character; or R.sub.2 and R.sub.3 together with the nitrogen atom to which they are attached form an unsubstituted or substituted non-aromatic cyclic radical.The invention further provides pharmaceutically acceptable acid addition salts of the above compounds.Several methods of preparation of the new compounds are described.
Abstract: N-substituted .omega.-aminoalkanoyl-.omega.-aminoalkanoic acids and their pharmacologically-acceptable salts (with a base) are useful, e.g., in pharmaceutical-composition form for the treatment or prophylaxis of diseases which are based on inadequate performance of the pancreas, the bile and/or the liver. The compounds are prepared, e.g., by reacting an N-(mono- or di-substituted) .omega.-amino-alkanoic acid with an N-(unsubstituted or monosubstituted) .omega.-aminoalkanoic acid.
Abstract: Compounds of the formula ##STR1## wherein R is (a) optionally-substituted and optionally-hydrogenated biphenylyl, (b) optionally-substituted and optionally-hydrogenated bicyclic aryl having from 8 to 12 ring carbon atoms or (c) a radical of the formula ##STR2## R.sup.1 is aliphatic hydrocarbyl, alicyclic hydrocarbyl or optionally-substituted phenyl;R.sup.2 is --H or lower aliphatic hydrocarbyl;R.sup.3 is --H, lower alkyl, cycloalkyl, optionally-substituted phenyl or, with R.sup.4, alkylene;R.sup.4 is lower alkyl, cycloalkyl, optionally-substituted phenyl, optionally-(nuclearly)-substituted phenalkyl or, with R.sup.3, alkylene;or R.sup.2,R.sup.3 and R.sup.4, together with the carbon to which each is bound, are adamantyl; andn is 3, 4 or 5;and salts thereof with a base are pharmacologically active. Esters thereof are valuable intermediates for the preparation of the pharmacologically-active compounds. Physiologically-acceptable embodiments are administered, e.g.
Abstract: Novel 9-aminoalkyl-methanoanthracenes of the formula: ##STR1## wherein A is C.sub.1 -C.sub.4 alkylene or C.sub.3 -C.sub.4 alkenylene and R.sub.1 and R.sub.2 are each hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl, C.sub.3 -C.sub.6 cycloalkyl(C.sub.1 -C.sub.3)alkyl, ar(C.sub.1 -C.sub.3)alkyl or polyhalo(C.sub.2 -C.sub.4)alkyl or, when taken together with the adjacent nitrogen atom, they may form a 5 to 7-membered nitrogen-containing heterocyclic ring which may contain an additional hetero atom, and their non-toxic salts, which are useful as anti-anxiety, anti-depressant, major tranquilizer, anti-histamine and anti-allergy drugs and can be prepared through a novel key intermediate, i.e., 9-formyl-9,10-dihydro-9,10-methanoanthracene, by various methods.
Abstract: A new synthesis of key prostaglandin precursors and intermediates employed in their preparation. The novel synthetic sequence of this invention is shorter and more efficient than those previously employed to prepare to key intermediate.
Type:
Grant
Filed:
June 22, 1978
Date of Patent:
July 22, 1980
Assignee:
Pfizer Inc.
Inventors:
Elias J. Corey, Jasjit S. Bindra, Thomas K. Schaaf
Abstract: Novel (2-amino-2-oxoethoxy)acetic acid compounds and antisecretory compositions and methods employing (2-amino-2-oxoethoxy)acetic acid compounds are disclosed. The (2-amino-2-oxoethoxy)acetic acid compounds are also useful as cardiotonic agents and as calcium binding agents; certain of the compounds are also useful for their calcium transport properties. Novel 4-substituted 3,5-morpholinediones intermediates in the preparation of certain of the (2-amino-2-oxoethoxy)acetic acid compounds and further useful as antisecretory agents are also disclosed.
Abstract: Tricyclo[4.3.1.1.sup.2,5 ]undecane-1-carboxylic acid and acid halides and esters thereof having the formula (I), ##STR1## wherein Y represents a hydroxy group, a chlorine or bromine atom, or an alkoxy group of the formula RO- wherein R is a straight-chain, branched-chain or cyclic alkyl group having 1 to 12 carbon atoms, include compounds which exhibit superior antiviral action.
Abstract: .omega.-NOR-CYCLOALKYL-13,14-DEHYDRO-PROSTAGLANDIN COMPOUNDS, SPECIFICALLY 13,14-DEHYDRO-17-CYCLOHEXYL-20,19,18-TRINOR-PGF.sub.2.alpha. having antiulcer and luteolytic activity, are disclosed.
Type:
Grant
Filed:
September 21, 1977
Date of Patent:
September 25, 1979
Assignee:
Carlo Erba S.p.A.
Inventors:
Carmelo Gandolfi, Renato Pellegata, Roberto Ceserani, Maria M. Usardi
Abstract: The 15-substituted-.omega.-pentanorprostaglandins and various intermediates employed in their preparation. The novel prostaglandins of this invention have been found to have activity profiles comparable to the parent prostaglandins, but exhibit a greater tissue specificity of action.
Abstract: Intermediates useful for the synthesis of the valuable perfume material norpatchoulenol, said intermediates having the formula, for instance ##STR1## This intermediate, which is a novel compound, is useful as an intermediate for the production of ethers, esters and other intermediates, which are also novel compounds, such as, for instance, methyl, ethyl, isopropyl and benzyl ethers which can be represented by the formulae ##STR2## wherein R is hydrogen or lower carboxylic acyl. ##STR3## WHERE R is lower alkyl, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, benzyl, etc., and ##STR4## where ##STR5## is a lower acyl radical such as acetyl, propionyl, butyryl, benzoyl, etc. Such intermediates are readily prepared by etherification and esterification reaction procedures and said intermediates are useful as intermediates for the preparation of other odorants.
Abstract: Use of tricyclic compounds, some of which are new, as perfuming and/or flavoring ingredients in the manufacture of perfumes and perfumed products and/or in the preparation of artificial flavors for foodstuffs, animal feeds, beverages, pharmaceutical preparations and tobacco products.Process for the preparation of said tricyclic compounds.