Abstract:
The invention relates to the novel 4-oxo-azetidine-2-sulfonic acid amides and their salts of the formula I ##STR1## wherein the radicals have the meanings: R.sup.1 =hydrogen, halogen;R.sup.2 =hydrogen, halogen, NH.sub.2, C.sub.6 H.sub.5 CH.sub.2 CONH, C.sub.6 H.sub.5 OCH.sub.2 CONH, phthalimido, o-MeNHCOC.sub.6 H.sub.4 CONH, isoxazolylcarbonylamino;R.sup.3 =hydrogen, Me.sub.2 C.dbd.C--COOMe, H.sub.2 C.dbd.C(Me)--CH--COOMe, Me.sub.2 C.dbd.C--COOCH.sub.2 C.sub.6 H.sub.5, H.sub.2 C.dbd.C(Me)CH--COOCH.sub.2 C.sub.6 H.sub.4 NO.sub.2 -p, Me.sub.2 C.dbd.C--COOCH.sub.2 C.sub.6 H.sub.4 NO.sub.2 -p, Me.sub.2 C.dbd.C--COOCH.sub.2 C.sub.6 H.sub.4 Me-m, H.sub.2 C.dbd.C(Me)--CH--COOCH.sub.2 C.sub.6 H.sub.4 Me-m, Me.sub.2 C.dbd.C--COOH;R.sup.4 =hydrogen or sodium andR.sup.5 =hydrogen, alkyl, benzyl or heterocycle, i.e. isoxazole or pyrazole etc.The invention also relates to the procedure for the preparation thereof and the use thereof as intermediates in the synthesis of beta-lactam analogs or as active components for the preparations of the drugs for antimicrobial therapy.
Abstract translation:本发明涉及新的4-氧代 - 氮杂环丁烷-2-磺酸酰胺及其式I的盐,其中基团具有以下含义:R 1 =氢,卤素; R2 =氢,卤素,NH2,C6H5CH2CONH,C6H5OCH2CONH,苯二甲酰亚氨基,o-MeNHCOC6H4CONH,异恶唑基羰基氨基; R3 =氢,Me2C = C-COOMe,H2C = C(Me)-CH-COOMe,Me2C = C-COOCH2C6H5,H2C = C(Me)CH-COOCH2C6H4NO2-p,Me2C = C-COOCH2C6H4NO2-p,Me2C = C -COOCH 2 C 6 H 4 Me-m,H 2 C = C(Me)-CH-COOCH 2 C 6 H 4 Me-m,Me 2 C = C-COOH; R4 =氢或钠,R5 =氢,烷基,苄基或杂环,即异恶唑或吡唑等。本发明还涉及其制备方法及其作为合成β-内酰胺类似物或活性的中间体的用途 用于抗微生物治疗药物的制备成分。
Abstract:
The invention relates to novel 2-bromo- and 2-nitroxy derivatives of 3-,bromo- and 3-dibromo-4-oxo-azetidines, to processes for the preparation thereof and to the use thereof.According to the invention 2-bromo- and 2-nitroxy derivatives of 3-bromo- and 3-dibromo-4-oxo-azetidines are prepared by reacting derivatives of protected penicillanic lanic acid 1,1-dioxides with DBN reactant (1,5-diazabicyclo/3.4.0/non-5-ene) and then the obtained DBN salt of sulfinic acid or isolated sulfinic acid is treated with thionyl chloride and, after eliminating thionyl chloride by evaporation, the obtained residue is passed through a silica gel column with methylene chloride or some other solvent as eluant or the obtained residue is dissolved in tetrahydrofuran or some other suitable solvent and treated with tetrabutyl ammonium bromide and after the treatment a derivative of 2-bromo, 3-bromo or 2-bromo-3,3-dibromo-4oxo-azetidine is isolated, which derivative may be subjected to a reaction with silver nitrate in 2-propanol and, after the treatment of the reaction mixture, derivatives of 2-nitroxy-, 3-bromo- or 2-nitroxy-3,3-dibromo-4-oxo-azetidine are isolated.The obtained substances are useful intermediates in the syntheses of beta lactam analogons or as components in formulations having antibacterial, inhibitory, anti-tumour or antagonistic action.
Abstract:
5-Thia-1,4-diazabicyclo[4.2.0]octane-3,8-dioxo analogs of .beta.-lactam, processes for the preparation thereof and the use thereofDisclosed are novel 5-thia-1,4-diazabicyclo[4.2.0]octane-3,8-dioxo .beta.-lactam analogs of the general formula I ##STR1## wherein R.sup.1 is hydrogen or halo;R.sup.2 is hydrogen, halo, amino, PhCH.sub.2 CONH, PhOCH.sub.2 CONH, phthalimido, o-MeNHCO-C.sub.6 H.sub.4 -CONH, isoxazolylcarboxamido;R.sup.3 is hydrogen, alkyl, benzyl, heterocycle, e.g. isoxazole, pyrazole etc., andn may be 1 or 2.They may be used as intermediates in preparing novel .beta.-lactam analogs or as active substances in formulations for antimicrobial therapy.
Abstract:
The invention relates to novel 4-oxo-azetidine-2-sulfonic acids and their salts or the formula I ##STR1## wherein: R.sup.1 =hydrogen, halogen, phenylacetamido;R.sup.2 =hydrogen, halogen, phenylacetamido, phenoxyacetamido, phthalimido, 5-methyl-3-o-chlorophenyl-isoxazole-4-carboxamido;R.sup.3 =hydrogen, alkali metal, alkaline earth metal, quaternary ammonium group;R.sup.4 =hydrogen, SO.sub.2 O.sup.-+ NBu.sub.4 -n, (CH.sub.3).sub.2 C.dbd.C--COOCH.sub.3, (CH.sub.3).sub.2 C.dbd.C--COOCH.sub.2 -Ph, (CH.sub.3).sub.2 C.dbd.C--COOCH.sub.2 --C.sub.6 H.sub.4 --NO.sub.2 -p, (CH.sub.3).sub.2 C.dbd.C--COOCH.sub.2 --C.sub.6 H.sub.4 --CH.sub.3 -m.The products (I) may be used as intermediates in the synthesis of beta-lactamic antibiotics or as components in antimicrobial preparations.