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Merck KGaA
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E Merck AG
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Publication of ES273670A1publicationCriticalpatent/ES273670A1/en
A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K31/00—Medicinal preparations containing organic active ingredients
A61K31/33—Heterocyclic compounds
A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
A61K31/404—Indoles, e.g. pindolol
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Health & Medical Sciences
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Chemical & Material Sciences
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Medicinal Chemistry
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Pharmacology & Pharmacy
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Epidemiology
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Life Sciences & Earth Sciences
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Animal Behavior & Ethology
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General Health & Medical Sciences
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Indole Compounds
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Abstract
Procedure for the preparation of 5-alkoxy-oxindoles characterized by the fact that an o-aminophenylacetic acid of the formula I ** (See formula) ** is converted in which R1 means an alkyl radical with 2 to 6 carbon atoms or the allyl radical either one of its functional acid derivatives leaving them standing or heating them in an inert solvent or 5-hydroxy-oxindole by treatment with an alkylating agent in a 5-alkoxy-oxindole of formula III ** (See formula) ** in which R1 has the meaning expressed above. (Machine-translation by Google Translate, not legally binding)
ES0273670A1961-01-141962-01-13Procedure for the preparation of 5-alcoxy-oxindoles (Machine-translation by Google Translate, not legally binding)
ExpiredES273670A1
(en)
Process for the preparation of the lactonas alcanoiltio - 17a-carboxietil-17b-hidroxiaondosten-3-onas (Machine-translation by Google Translate, not legally binding)