87 results about "Indane" patented technology

The invention concerns a process for separating meta-xylene from a hydrocarbon feed comprising isomers containing 8 carbon atoms, comprising:a step for bringing said feed into contact with a faujasite type zeolite adsorbant, the water content of the adsorbant being in the range 0 to 1% by weight and the adsorption temperature being from 160° C. to 180° C.;a desorption step employing a solvent selected from toluene, indane and mixtures thereof.

Provided are compounds which are an NMDA antagonist having a broad safety margin and are useful as a treating agent or a preventing agent for Alzheimer's disease, cerebrovascular dementia, Parkinson's disease, ischemic apoplexy, pain, etc. Concretely provided are an amine derivative or its salt characterized in that the amine-containing structure A therein bonds to a 2- or 3-cyclic condensed ring (e.g., indane, tetralone, 4,5,6,7-tetrahydrobenzothiophene, 4,5,6,7-tetrahydrobenzofuran, 7,8-dihydro-6H-indeno[4,5-b]furan, 2,3-dihydro-1H-cyclopenta[1]naphthalene) via X 1 (bond or lower alkylene); and an NMDA antagonist containing it as an active ingredient thereof.A compound useful as an NMDA antagonist having a wide safety region which is a therapeutic agent for Alzheimer's disease, vascular dementia (vascular agnosia), Parkinson's disease, ischemic apoplexy, and pains or a preventive agent for these. The compound is an amine derivative or salt thereof characterized by comprising an amine-containing structure (A) and a di- or tricyclic fused ring (indane, tetralone, 4,5,6,7-tetrahydrobenzothiophene, 4,5,6,7-tetrahydrobenzofuran, 7,8-dihydro-6H-indeno[4,5-b]furan, 2,3-dihydro-1H-cyclopenta[a]naphthalene, etc.) bonded to the structure (A) through X<1> (a bond, lower alkylene, etc.). The NMDA antagonist contains the derivative or salt as an active ingredient.

Disclosed are compounds for medical uses, for example, compounds of formula (Ia), wherein A1, A2, A3, A4, A5, A6, A7, R6, R7 and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.

The invention provides a novel fire retardant tri(1,3-dioxa-2-phospho hetero-2-oxo-1,2-indane) m-cresyl phosphate and a preparation method thereof. The novel fire retardant is characterized in that the structural formula of the novel fire retardant is shown in a formula I. By using the preparation method, the novel halogen-free phosphorus fire retardant is synthesized, the novel halogen-free phosphorus fire retardant has the advantages of good antiflaming effect, environment friendliness and no pollution as well as good degradability. Simultaneously, the fire retardant is simple and availablein raw material, is low in cost, and has strong practicability.