摘要:
The invention relates to new peptide derivatives which act on the central nervous system and correspond to the general formula (I),X--Y--W--NH.sub.2 (I)whereinX is L-pyroglutamyl, D-pyroglutamyl, L-2-keto-imidazolidine-4-carbonyl, L-6-keto-pipecolyl, L-thiazolidine-4-carbonyl, L-prolyl or orotyl group,Y is L-leucyl, L-norvalyl or L-histidyl group, andW is L-prolyl, D-prolyl, L-thiazolidine-4-carbonyl, L-pipecolyl, L-homoprolyl, L-leucyl, L-isoleucyl, L-methionyl or D-pipecolyl group, orthe W-NH.sub.2 group stands for pyrrolidyl or piperidyl group, with the proviso that if X is L-pyroglutamyl and Y is L-histidyl group, W is other than L-prolyl group, and pharmaceutically acceptable complexes thereof.These compounds are prepared by methods commonly applied in the peptide chemistry.
摘要:
The invention relates to new 3-amino-17a-aza-D-homo-5.alpha.-androstane derivatives of the general formula I ##STR1## wherein R.sub.1 represents a methylene or an >N--CH.sub.3 group, and n stands for 1 or 2, and the acid addition salts and the quaternary salts of the general formula ##STR2## thereof, wherein R.sub.2 stands for an alkyl or alkenyl group having from 1 to 4 carbon atoms, and A represents a halogen atom, provided that if R.sub.1 stands for an >N--CH.sub.3 group, R.sub.2 is attached to the nitrogen of that >N--CH.sub.3 group. The new compound possess a non-polarizing neuromuscular blocking activity and have a short activity period.
摘要:
A method of treating mammalian noradrenaline malfunctions or dysfunction or effecting dopamine-.beta.-hydroxylase inhibition comprises administering an effective dose of an acid derivative of the formula (I), ##STR1## wherein R is C.sub.2-4 alkenyl, C.sub.3-8 cycloalkyl, benzyl or C.sub.1-6 alkyl which has a C.sub.1-4 alkoxy or a hydroxy substituent, or C.sub.2-6 alkyl with a carboxy and/or amino substituent, or C.sub.5 - or C.sub.6 -unsubtituted alkyl.
摘要:
New hydroxymethyl-pyridine esters of the formula (I) ##STR1## wherein R represents a 9-xanthenyl group or a phenyl group substituted by a halogen atom or a trifluoromethyl group or by an alkyl or alkoxy group, either having 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts and quaternary salts thereof are prepared by acylating the corresponding hydroxymethyl pyridines with a carboxylic acid of the formula R--COOH, or with a reactive derivative thereof, and, if desired, converting the obtained product of the formula I into a pharmaceutically acceptable acid addition salt or quaternary salt thereof. The new compounds exert beneficial effects on functional disorders of the heart.
摘要:
A compound of the formula (I) ##STR1## wherein X stands for a hydrogen atom, an optionally substituted aliphatic or aromatic sulfonyloxy group, a thiocyanato group, an azido group or an amino group optionally mono- or disubstituted by aliphatic, cycloaliphatic, aromatic or araliphatic hydrocarbon groups, acyl, alkyloxycarbonyl, cycloalkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl, aminocarboimido groups or the substituents of the said amino group may form with the nitrogen atom thereof a five-, six- or seven-membered saturated or unsaturated heterocyclic ring optionally containing a further nitrogen, oxygen or sulfur hetero atom, and a quaternary salt or acid addition salt thereof. The compounds are useful in the treatment of arteriosclerosis and high blood pressure.
摘要:
The invention is directed to a new substituted derivative of .alpha.-ethylnyl-benzophenone, namely, the 3-iodo-.alpha.-ethynyl-benzhydrol which has high antifungal activity.
摘要:
A compound of the following formula: ##STR1## wherein X.sub.1 is hydrogen or mercapto;X.sub.2 is mercapto or acetylthio;X.sub.3 is hydrogen or acetylthio; andX.sub.4 is hydrogen, acetylthio or X.sub.3 and X.sub.4 together form a valence bond, but if X.sub.3 and X.sub.4 form a valence bond X.sub.2 is mercapto. The compounds are useful in the treatment of heavy-metal poisoning.
摘要:
The invention relates to xanthene-9-carboxylates of the formula ##STR1## wherein R.sub.1 and R.sub.3 may be the same or different and represent a lower alkyl group,n and m each are integers of 2 to 5, or pharmaceutically-effective salts thereof. The compounds according to the invention possess cholinolytic and bronchospasmolytic effects and are completely devoid of harmful side-effects. Thus these compounds can be used to great advantage in therapy.
摘要:
Compounds of the formula ##STR1## wherein R.sub.1 stands for hydrogen or an acyl group, andR.sub.2 stands for an alkyl group are disclosed.A process for making the above compounds is also disclosed. The compounds are useful as vasodilatating agents for example.
摘要:
The invention relates to novel 15-nitro-2.beta.,3.beta.-dihydro- and 15-nitro-2.beta.,3.beta.,6,7-tetrahydrotabersonine derivatives of the formula (I), ##STR1## wherein R.sup.1 stands for hydrogen;R.sup.2 stands for hydrogen or a C.sub.1-6 alkyl group; and the symbol represents a single or double bond as well as their salts.The invention further relates to pharmaceutical compositions containing the above compounds as well as a process for the preparation of the above compounds of formula (I) and of the pharmaceutical compositions.The compounds of formula (I) exert a reducing or inhibitory effect on cerebral edema and show antihypoxic properties. Thus, they are useful for the prevention or treatment of brain injuries of various origin induced by hypoxia of the brain.