Abstract: A planar flow reactor includes a straight planar process channel, a flow generator, and a plurality of static mixing elements disposed within the process channel. The flow generator is configured to generate a pulsatile flow within the process channel, and the static mixing elements are configured to locally split and recombine the flow. The straight planar process channel enables the generation of a flow pattern that is largely independent of the width of the process channel, meaning that the throughput may be increased by increasing the width without significantly affecting the residence time distribution or the flow behavior. Furthermore, by creating a pulsatile flow within the process channel, turbulence and/or chaotic fluid flows may be generated even at low net flow rates, i.e. low net Reynolds numbers.

Abstract: A planar flow reactor includes a straight planar process channel, a flow generator, and a plurality of static mixing elements disposed within the process channel. The flow generator is configured to generate a pulsatile flow within the process channel, and the static mixing elements are configured to locally split and recombine the flow. The straight planar process channel enables the generation of a flow pattern that is largely independent of the width of the process channel, meaning that the throughput may be increased by increasing the width without significantly affecting the residence time distribution or the flow behavior. Furthermore, by creating a pulsatile flow within the process channel, turbulence and/or chaotic fluid flows may be generated even at low net flow rates, i.e. low net Reynolds numbers.

Abstract: The present invention provides topical compositions containing phosphorylated polyphenols in combination with a topically acceptable carrier. The compositions of the invention provide a means for delayed delivery of the polyphenol to keratinous tissues, such as skin, hair and nails, with enzymes of the keratinous tissue dephosphorylating the polyphenol, and returning it to its native active form. The compositions are particularly useful in the regulation of skin conditions. the phosphorylated stilbene is a phosphorylated resveratrol or a phosphorylated resveratrol derivative.

Abstract: The present invention provides topical compositions containing phosphorylated polyphenols in combination with a topically acceptable carrier. The compositions of the invention provide a means for delayed delivery of the polyphenol to keratinous tissues, such as skin, hair and nails, with enzymes of the keratinous tissue dephosphorylating the polyphenol, and returning it to its native active form. The compositions are particularly useful in the regulation of skin conditions.

Abstract: The present invention relates to phosphorylated polyphenols, preferably tannins that, unlike their unphosphorylated counterparts, do not suffer from relatively low stability, resulting in an activity that is relatively short in time, and/or that do not result in yellowing of materials therewith such as textiles or polymers. The present invention further relates to a simple, cheap and environmentally friendly way of preparing these compounds. The phosphorylation process of the invention can be extended to simple phenolic compounds as well, as long as these have at least one accessible hydroxyl group. The phosphorylated compounds according to the invention can be used as antioxidants, as radical scavengers, as complexating agents for metals and proteins, as antibacterials or antiallergenic compounds, and as agents to flock textile.

Abstract: A description is given of conjugates of vinca alkaloid of the indole-dihydroindole type with a protein or a protein fragment, corresponding to the general formula ##STR1## in which R.sub.1 denotes a protein or a protein fragment;R.sub.2 is COO(C.sub.1-3 alkyl) or CO-R.sub.7 where R.sub.7 isNH.sub.2 or an amino acid ester or peptide ester;R.sub.3 is H, CH.sub.3 or CHO;when R.sub.5 and R.sub.6 are taken separately, R.sub.6 is H and one of R.sub.4 and R.sub.5 is ethyl and the other is H or OH;when R.sub.5 and R.sub.6 are taken together with the carbon atoms to which they are attached, they form an oxirane ring and R.sub.4 is ethyl, andA is a residue of a bifunctional organic derivative of the maleoylamino acid or maleoyl peptide or maleoylphenoxy type.

Abstract: The invention relates to new conjugates of vinblastine and some of its known derivatives with proteins, fragments thereof, aminoacids or amines, which are useful as anti-tumor agents. The invention also relates to some intermediates which are active in chemotherapy, and amino derivatives thereof.These compounds correspond to the following general formula ##STR1## in which A represents an acetylamino-, trifluoroacetylamino- or carbobenzyloxyamino- substituted --CO(CH.sub.2).sub.n CO-- or ##STR2## in which n is 1 to 5, R.sub.1 represents an optionally modified protein radical,R.sub.2 represents a methoxy group, an amino group or an alpha-aminoacid ester radical which is bonded via a bond of the amide type and in which the ester group contains 1 to 6 carbon atoms, and R.sub.3 represents hydrogen or hydroxyl.

Abstract: A description is given of conjugates of vinca alkaloid of the indole-dihydroindole type with a protein or a protein fragment, corresponding to the general formula ##STR1## in which R.sub.1 denotes a protein or a protein fragment;R.sub.2 is COO(C.sub.1-3 alkyl) or CO--R.sub.7 where R.sub.7 is NH.sub.2 or an amino acid ester or peptide ester;R.sub.3 is H, CH.sub.3 or CHO;when R.sub.5 and R.sub.6 are taken separately, R.sub.6 is H and one of R.sub.4 and R.sub.5 is ethyl and the other is H or OH;when R.sub.5 and R.sub.6 are taken together with the carbon atoms to which they are attached, they form an oxirane ring and R.sub.4 is ethyl, and A is a residue of a bifunctional organic derivative of the maleoylamino acid or maleoyl peptide or maleoylphenoxy type.

Abstract: The invention is related to new 1,2,3,4,5,6-hexahydro-5-hydroyalkylazepino[4,5-b]-indole derivatives, of formula: ##STR1## in which R.sub.1 denotes a hydrogen atom, an alkyl radical, an alkenyl radical, a benzyl radical, an alkylamino radical of the type ##STR2## where the groups R' are either hydrogen atoms or alkyl radicals or form, together with the nitrogen atom to which they are attached, a heterocyclic nucleus of the morpholinyl, piperidinyl, pyrrolidinyl or piperazinyl type, and m is 2 or 3,R.sub.2 denotes a hydrogen atom or a benzoyl or acyl radical,R.sub.3 denotes a hydrogen atom or an alkyl or benzyl radical,R.sub.4 denotes a hydrogen or halogen atom, an alkyl radical an alkoxy radical or a trifluoromethyl radical, andn is 1 or 2, and the salts of addition to pharmaceutically acceptable acids,and to process for their preparation, to intermediates obtained and to their therapeutical use in treating mental disorders.

Abstract: Vinblastine derivatives of the formula ##STR1## wherein R.sub.1 is an ester of a .alpha.-aminoacid selected from the group consisting of glycine, alanine, valine, leucine, isoleucine, serine, threonine, aspartic acid, glutamic acid, aspargine, glutamine, arginine, lysine, cysteine, cystine, methionine, phenylalanine, tyrosine, tryptophan, proline, histidine, hydroxy-lysine, hydroxyproline, or of a peptide consisting of 1-6 identical or different such amino-acids, and the ester group, which may be straight or branched, being a carboalkoxy group having 2-9 carbon atoms, and R.sub.2 is hydrogen or a C.sub.2 -C.sub.9 alkanoyl group, R.sub.5 is H or OH, R.sub.6 is CH.sub.3, CHO or H and X=H or Br and their pharmaceutically acceptable mineral or organic acid addition salts. The compounds are useful as antitumor drugs.

Abstract: The present invention is concerned with derivatives of 2,3,3a,4,5,6-hexahydro-1H-indolo(3,2,1-de)(1,5)naphthyridine of the formula ##STR1## in the form of base or acid addition salts, preferably with pharmaceutically acceptable acids, wherein one of the groups R1 and R2 represents a lower alkyl group and the other represents a hydrogen atom or R1 and R2 represent each independently an alkyl group or, together an alkanediyl group having from 4 to 6 carbon atoms. R3 represents a lower alkyl group, a hydrogen atom or a benzyl group. And either R5 represents a lower carboalkoxy group or a hydrogen atom and R6 represents with R4 an additional carbon-carbon bond; or R4 represents a hydrogen atom and R6 and R5 represent together an oxygen atom or respectively a hydrogen atom and a hydroxyl group.

Abstract: This invention relates to novel tetrahydroazepinoindoles used in the preparation of novel alkyl pyrrolo(2,3-d)carbazole-6-carboxylates and to addition salts thereof; and to preparation of the same by a synthesis sequence starting from a tryptamine and a 3-halopyruvate and involving a rearrangement of the reaction mixture, said rearrangement being effected by heating the reaction mixture in the presence of a base. The pyrrolo(2,3-d)carbazole final products have both antianoxic and psychotropic activities.

Abstract: Compounds having the following general formula: ##STR1## wherein R is an alkyl or aminoalkyl group having 1 to 8 carbon atoms, or a hydrogen atom; R.sub.2 and R.sub.3 are either hydrogen atoms or, together, an additional carbon-carbon bond, as well as the mineral or organic acid addition salts thereof. These compounds are used as anti-arhythmic agents.

Abstract: Amino acid derivatives of vinblastine, including peptide derivatives, methods of their preparation and pharmaceutical compositions containing such vinblastine derivatives for use as antitumor agents are described.

Abstract: This invention relates to alkyl pyrrolo(2,3-d) carbazole-6-carboxylates having antianoxic, psychotropic and hemodynamic properties and to addition salts thereof; and to preparation of the same by a synthesis sequence starting from a tryptamine and a 3-halopyruvate and involving a rearrangement of an addition compound with an aldehyde, said rearrangement being effected by Nb-alkylation of the aforementioned addition compound; and to pharmaceutical compositions containing the same; and to tetrahydroazepinoindoles used in the preparation of the same.

Abstract: The new derivatives of vincamine according to this invention may be represented by the general formula ##STR1## in which R.sub.1 represents a halogen atom and R.sub.2 may represent a hydroxy group whereas R.sub.3 may represent a hydrogen atom, or R.sub.2 may form with R.sub.3 an additional bond.The compounds may be used to treat cardio-circulatory, cerebro-vascular and respiratory insufficiencies.