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Ecole Nationale Superieure De Chimie De Rennes

Université De Bretagne Occidentale

Laboratoires Goemar

Laboratories Goemar

Ecole Nationale Superieure De Chime De Rennes

Daniel Plusquellec

Thierry Benvegnu

Jean-Pierre Antoine

Jerome Marcilloux

Fabrice Goursaud

Jean-Claude Yvin

Bernard Parant

Vincent Ferrieres

Frank Jamois

Martine Lefeuvre

Pierre Lehn

Tristan Montier

Claude Ferec

Pascal Delepine

Gildas Rethore

Mickaelle Scahet

Mickaelle Sachet

Jérôme Marcilloux

The invention relates to a compound of general formula (I): where X=0 or 1, Z=O, S or CH, Rand Rindependently=OH or OY, where Y=a protecting group, OR, where R=a monosaccharide or disaccharide group, A-CH&#x2014;N(CH), X', where X=halogen, A=an amide (NHC(O)) or ester (OC(C)) bond, OPO(OM), where M=an alkyli or alkyli earth metal, OP(O)O&#x2014;O(CH)&#x2014;N(CH), A-(PEG-A)-R, where n=0 or 1, PEG=a polyethyleneglycol of molecular weight X, where Xbeing less than or equal to 5,000 daltons, Aand Aindependently=a ether (O), ester (OC(O)), amide (NHC(O)), urea (NHC(O)NH), thiourea (NHC(S)NH), or thioether (S) bond R=a directing agent. 

Analogue compounds of archaebacterial membrane lipids and liposomal compounds integrating such compounds

The invention relates to surfactant compositions made from esters or amides of the betaine glycine, produced by reaction of the glycine betaine with a sulphonic acid and an alcohol or a fatty-chain amine derived from vegetable oils. The invention further relates to a cosmetic comprising said surfactant composition, in particular, liquid soap, bath foam, shower gel or shampoo.

Surfactant composition method for production thereof and cosmetic comprising said composition

The invention relates to an aqueous bitumen emulsion, comprising bitumen and a surfactant agent, made from esters or amides of glycine betaine, produced by reaction of glycine betaine with a sulphonic acid and an alcohol or amine with a fatty chain derived from vegetable oils. Said bitumen emulsion may be used in the production of road surfaces.

Aqueous bitumen emulsion

The present invention relates to a novel method of chemically preparing functionalized derivatives of &#x3b2;-(1,3)-glucans, enabling obtaining oligosaccharides which are free or which comprise specific groups such as, for example, sulphate, phosphate, methyl, in pre-defined positions. This method includes a reaction between a glycosyl donor of formula (Ia) or (Ib) and a glycosyl acceptor of formula (II), defined in the claims. Application: Preparation of biologically active compounds which can be used in the agricultural, cosmetic or pharmaceutical fields.

Method for preparing functionalized &#x3b2;-(1,3)-glucan derivatives

The invention concerns a method for preparing Laminaribiose comprising a step for glycoside binding between a donor and an acceptor of glycosyl. The invention is characterized in that the glycosyl donor is in pyranose form and corresponds to formula (II); the glycosyl acceptor is in furanose form and corresponds to formula (III); said binding step is performed in solution in an anhydrous organic solvent, at a temperature ranging between &minus;80&deg; C. and 40&deg; C., for a time interval ranging between 1 minute and 8 hours, in the presence of a suitable promoter.

Method for laminaribiose synthesis

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Noyal Chatillon sur Seiche, France

Daniel Plusquellec