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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Priority claimed from JP653170Aexternal-prioritypatent/JPS5138714B1/ja
Application filed by Sumitomo Chemical Co LtdfiledCriticalSumitomo Chemical Co Ltd
Publication of ES382384A1publicationCriticalpatent/ES382384A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Plural Heterocyclic Compounds
(AREA)
Abstract
A procedure for preparing quinazoline derivatives represented by the formula **(See formula)** where D represents a group of formula **(See formula)** W represents oxygen or sulfur; n represents 0 or an integer from 1 to 3; R1, R2 and R3 each represent hydrogen, halogen, nitro, C1-4alkyl, C1-4alkoxy, C1-4alkylthio, C1-4alkylsulfonyl, C1-4alkylsulfinyl, trifluoromethyl; and R4 represents C3-6 cycloalkyl, and its pharmaceutically acceptable acid addition salts, characterized in that it comprises reacting a compound of the formula **(See formula)** where D, n, R1, R2 and R4 are the same as defined above; and Z represents oxygen or imine; with a compound containing a -NCO or -NCS group in the molecule, to produce a quinazoline derivative of formula (I); or else react a compound of the formula **(See formula)** wherein D, n, R1, R2 and R4 are the same as defined above, with phosgene to produce a quinazoline derivative represented by the formula **(See formula)** where D, n, R1, R2 and R4 are the same as defined above. (Machine-translation by Google Translate, not legally binding)
ES382384A1969-09-041970-08-01A procedure for preparing quinazoline derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES382384A1
(en)
A procedure for preparing a selected chemical compound of the group consisting of nitroimidazool-ethyl O-thiocarbamate. (Machine-translation by Google Translate, not legally binding)
Analgesic drugs based on N- (aroilalkil) n '- (alfanols) piperacinas and their derivatives, and procedure for their obtaination. (Machine-translation by Google Translate, not legally binding)
Chemical compounds process for preparing said compounds and process for preparing 6-(p-hydroxyphenyl-glycylamido)-penam or 7-(p-hydroxyphenyl-glycylamido)-cephem compounds