摘要:
The invention thus provides a process for obtaining the preferential replacement by isotopes, of at least one of the hydrogen atoms selected from the group consisting of those attached to the .alpha.- or .alpha.'-carbon atoms in a compound containing the structural moiety (I) ##STR1## which comprises the steps of oxidizing the compound to the corresponding sulfoxide or sulfone which contains the corresponding structural moiety (II) ##STR2## wherein in the sulfoxide n is 1 and in the sulfone n is 2, effecting the isotopic replacement by a known method of said at least one hydrogen atom, and reducing the resultant isotope-labelled sulfoxide or sulfone to the correspondingly labelled compound containing the structural moiety (I).
摘要:
Quinuclidine derivatives having the general formula (I) ##STR1## and geometrical isomers, enantiomers, diastereoisomers, racemates and/or acid addition salts thereof, wherein Z represents the group >CR.sup.1 R.sup.2 or two hydrogen atoms; and R.sup.1 and R.sup.2, which may be identical or different, are each alkyl, cyclopentyl, cyclohexyl, aryl, or diarylmethylol, or alkyl which is substituted by one or more aryl groups, or one of R.sup.1 and R.sup.2 may be hydrogen.
摘要翻译:具有通式(I)的奎宁环衍生物及其几何异构体,对映异构体,非对映异构体,外消旋体和/或其酸加成盐,其中Z表示基团> CR1R2或两个氢原子; R 1和R 2可以相同或不同,分别为烷基,环戊基,环己基,芳基或二芳基羟甲基,或被一个或多个芳基取代的烷基,或者R 1和R 2之一可以是氢。
摘要:
Provided is a production method for a cis-QMF, which has a low environmental burden and is industrially advantageous. Specifically provided is a production method for a cis-type 2-alkylspiro(1,3-oxathiolane-5,3′)quinuclidine hydrochloride, including: reacting a cis-trans isomer mixture of 2-alkylspiro(1,3-oxathiolane-5,3′)quinuclidine with p-nitrobenzoic acid; resolving the resultant product to produce a cis-type 2-alkylspiro(1,3-oxathiolane-5,3′)quinuclidine p-nitrobenzoate; and converting the p-nitrobenzoate into a hydrochloride.
摘要:
This invention relates to 1,3-oxathiolane derivatives (I), processes for the preparation of 1,3-oxathiolane derivatives and intermediate compounds thereof.
摘要:
This invention relates to 1,3-oxathiolane derivatives (I), processes for the preparation of 1,3-oxathiolane derivatives and intermediate compounds thereof.
摘要:
Pharmaceutical formulations containing a salt of (5S,8S)-8-[{(1R)-1-(3,5-Bis-(trifluoromethyl)phenyl)-ethoxy}-methyl]-8-phenyl-1,7-diazaspiro[4.5]decan-2-one, represented by Formula I, which are suitable for forming into a tablet dosage form, as well as tablet dosage forms are disclosed. Disclosed also are methods of treatment utilizing such dosage forms.
摘要:
The present invention relates to photochromic benzopyrans and to the use thereof in plastics of all kinds, especially for ophthalmic purposes. The inventive compounds are photochromic benzopyran compounds in which a polycyclic aromatic is joined to the 5 and 6 positions of a benzopyran, where the bond in the 6 position is direct and the bond in the 5 position is via a mono- or diatomic bridge.
摘要:
Novel dry skin remedies useful for treatment dry skin, containing as the active ingredient spiro [oxathiolane-quinuclidine] derivatives represented by general formula (I) or acid addition salts thereof, desirably cis-2-methylspiro [1,3-oxathiolane-5,3'-quinuclidine] hydrochloride. The remedies promote the secretion of sebaceous and sweat glands through oral or parenteral administration to treat dry skin, thus being useful as drugs.
摘要:
A method for the treatment of xerostomia not caused by Sjogren's syndrome comprising administering to an affected individual an effective amount of a derivative of spirooxathiolane-quinuclidine.
摘要:
A method for producing 2-methylspiro(1,3-oxathiolane-5,3')quinuclidine, which comprises reacting 3-hydroxy-3-mercaptomethylquinuclidine or a salt thereof and a carbonyl compound in the presence of a catalyst made of at least one member selected from the group consisting of tin halides, oxyacids of phosphorus, phosphorus oxyhalides and organic sulfonic acids, to produce cis-form 2-methylspiro(1,3-oxathiolane-5,3')quinuclidine or a salt thereof.