ES364714A1 - Procedure for the preparation of new derivatives of bencesulfonamide. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of new derivatives of bencesulfonamide. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
JR Geigy AG
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
Priority claimed from CH388268Aexternal-prioritypatent/CH505105A/en
Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Publication of ES364714A1publicationCriticalpatent/ES364714A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the preparation of new benzenesulfonamide derivatives of the general formula i, ** (see formula) ** In which R1 means an alkyl group with 1-carbon atoms, an alkenyl group with 3-4 carbon atoms or a cycloalkyl group with 5-7 carbon atoms, R2 means hydrogen, the methyl or ethyl group, and X means hydrogen, a halogen atom up to the atomic number 35, the methyl, methoxy or methylthio group or the acetyl group, And their addition salts are inorganic or organic acids, characterized in that a compound of the general formula ii, ** (see formula) ** In which X, r1 and r2 have the significance indicated under formula i and R3 means hydrogen, an arylmethyl, diarylmethyl or a triarylmethyl group, the methyl or allyl group, It is condensed with a cyanic acid derivative suitable for reaction, under ring closure, optionally under splitting of an r3-halide and the compound obtained is optionally converted with an inorganic or organic acid into an addition salt. (Machine-translation by Google Translate, not legally binding)
ES364714A1968-03-141969-03-13Procedure for the preparation of new derivatives of bencesulfonamide. (Machine-translation by Google Translate, not legally binding)
ExpiredES364714A1
(en)
Procedure for the preparation of new derivatives of the p-aminoalquil-bencensulfonamida. (Machine-translation by Google Translate, not legally binding)