IL24221A - Chromones and processes for the preparation thereof - Google Patents

Chromones and processes for the preparation thereof

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Publication number
IL24221A
IL24221A IL2422165A IL2422165A IL24221A IL 24221 A IL24221 A IL 24221A IL 2422165 A IL2422165 A IL 2422165A IL 2422165 A IL2422165 A IL 2422165A IL 24221 A IL24221 A IL 24221A
Authority
IL
Israel
Prior art keywords
carried out
actual
molar ratio
starting
chromones
Prior art date
Application number
IL2422165A
Original Assignee
Exploitations Chimi & Pharm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exploitations Chimi & Pharm filed Critical Exploitations Chimi & Pharm
Priority to IL2422165A priority Critical patent/IL24221A/en
Publication of IL24221A publication Critical patent/IL24221A/en

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Description

Registered Patent Attorneys Tel Aviv CE FOR on Israeli tovontin the nature of this invention and in what nanner to he as DO by S A a ie B d C r ti convenient such as ethyl alcohol and condensed with a secondary such as diethylamine piperidine or in a molar ratio boiling under reflux or by heating in an for a convenient period of the mixture is then cooled and and if is concentrated until dry under the residue is taken up again in a little water and the undissolved portion is extracted with a solvent such as The layer is peatedly washed with a satured aqueous solution of and thereafter dried over and admixed with alcoholic chloric acid in a slight The mixture is concentrated til dry under and the residue is from a convenient solvent such as alcohol In order that the invention may be readily carried it is described in greater detail in the following which are by way of illustration Example 1 HOI A mixture of 1 of 400 of absolute 45 of a alcoholic solution of dimethylamine was heated in an autoclave at a temperature of After removing the the resultant I residue was taken up in water and that part of the residue which insoluble in water was taken up in The chloroformic layer was washed 3 times with saturated solution of NaCl dried over anhydrous sodium filtered and acidified with a slight excess of alcoholic hydrochloric residue left after removing the solvent and recrystallizing from an solution gave of a i js alline product having a melting point Calculated for actual Example 2 The operatio was carried out as in example starting with chloromethyl and in a molar ratio of The yield was and a product obtained with a melting of for actual N CI Example The operation was carried out in example 1 starting with romone and piperidine i a molar ratio of The yield was and a product was obtained having a melting point of for actual CI Example 4 HC1 The operation was carried out as in example starting and line in a molar ratio of having a melting nylchromone HCl The operation was carried out as in example starting with and dimethylamine in molar ratio of The yield was and a product was obtained having a melting point of for actual N CI Example 6 HCl The operation was carried out as in starting with and diethylamine in a molar ratio of The yield was and a product was obtained having a melting point of for actual N CI Example i HCl The operation was carried out as in starting with and having poin of for actual CI Example HCl operation was carried out as in starting with and morpholin in a molar ratio of The yield was 6 and a product was obtained having a melting point of J for C 0 NCI actual N CI Example 2 HCl The operation was carried out as example starting with and piperidine in a molar ratio of The yield and a product was obtained having a meltin point of for actual Example 2 The was carried out as in example starting with and morpholine in a molar ratio of The and was obtained having a mel ing poin of for C actual N CI I order better to illustrate the value of the rementioned dat of the pharmacological tests which were carried out are hereafter set These compounds relate to some of the products subjected to a closer study relation to other central nervous known to the medical profession such as metrazol and these substances when in high doses cause and excitation central ervous Hence the dose in which caused convulsions in of the treated animals referred to as be considered an optimum rence to calculate the exciting power of the various drugs in relation to metrazol which was taken as a In the class examined drugs were found which were even more acti ve than which was up to as one of most active amongst the stimulating substances of the nervous The value of the lethal dose in the dose which caused convulsions and the relative power or the ratio between the of metrazol and the of the compound according to the invention are set out in the from the foregoing table that of the compounds in this invention are capable of antagonizing the lethal effects of acid more readily than the most active substances so far employed in this Two of the aforementioned compounds namely example and example 1 being the two most active from the analeptic point of view were tested with regard to their breathing stimulating The breathing stimulating activity was on rabbits and on rabbits whose respiration was depressed by of The obtained are set out in the following Table TABLE III Index Activity In table III the values are given index and of the specific activity the latter in relation to metrazol which was as a insufficientOCRQuality

Claims (1)

1. ia or and is chloride chloride drochloride hydroch ride hydrochlor hydrochlor insufficientOCRQuality
IL2422165A 1965-08-24 1965-08-24 Chromones and processes for the preparation thereof IL24221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IL2422165A IL24221A (en) 1965-08-24 1965-08-24 Chromones and processes for the preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL2422165A IL24221A (en) 1965-08-24 1965-08-24 Chromones and processes for the preparation thereof

Publications (1)

Publication Number Publication Date
IL24221A true IL24221A (en) 1969-03-27

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ID=11043702

Family Applications (1)

Application Number Title Priority Date Filing Date
IL2422165A IL24221A (en) 1965-08-24 1965-08-24 Chromones and processes for the preparation thereof

Country Status (1)

Country Link
IL (1) IL24221A (en)

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