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Mode of action of calcimycin (A23187) [PDF]
Journal de Chimie Physique, 1997 Les constantes de formation des complexes et des complexes basiques de la calcimycine avec les cations lanthane, gadolinium et europium (III) sont obtenus dans le methanol par une methode potentiometrique. L'analyse des spectres RPE du gadolinium pour des concentrations variables en calcimycine, perchlorate de gadolinium et methoxyde de ...
A Ouahabi +4 more
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A total synthesis of polyether antibiotic (−)-A23187 (calcimycin)
Tetrahedron Letters, 1987Abstract A total synthesis of (−)-A23187 (calcimycin) was accomplished by a convergent approach. The key step of synthesis was the stereospecific cyclization of the β-hydroxy ketone into the spiroketal under basic conditions.
Yoshito Kishi
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Stereocontrolled total synthesis of Antibiotic A-23187 (calcimycin)
Journal of the American Chemical Society, 1982Der ausgehend vom Keton (I) zugangliche Alkohol (Va) wird durch Oxidation und Grignardreaktion zu einem trennbaren Gemisch der Vinylderivate (Vb) + (Vc) umgesetzt, die sich beide in mehreren Stufen in den Ester (VIa) bzw. dessen Folgeprodukt (VIb) uberfuh; ren lassen.
Paul A Grieco
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Closely related ionophores cezomycin and calcimycin (A 23187): cooperative formation of the transporting species [PDF]
Inorganic Chemistry, 1994 Cezomycin, a biosynthetic analogue of calcimycin (A 23187), was studied to evaluate the effect of changes in structural features on the coordination and transport of calcium and magnesium. Its protonation and calcium and magnesium complexation properties were examined at equilibrium in pure methanol using potentiometric and spectrophotometric methods ...
A. M. Albrecht-Gary +3 more
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Semi-synthesis of A23187 (calcimycin) analogs
Experientia, 1983The cleavage of A23187 to give a synthon (4) and the semi-synthesis from (4) of 2 Des-N-methylamino A23187 isomers (7a,b) are described. The antibiotic activities of the acids analogous to A23187(1), (2), (7a), (7b) are compared.
M Prudhomme, G Jéminet
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ChemInform Abstract: ELABORATION OF THE C(3)‐C(12) CARBON FRAGMENT OF CALCIMYCIN (A‐23187). FORMAL TOTAL SYNTHESIS OF CALCIMYCIN [PDF]
Chemischer Informationsdienst, 1980 AbstractAus dem Bicyclo[2,2, 1] heptenon (I) erhält man bei der Behandlung mit alkalischem Wasserstoffperoxid das Lacton (II), das über angedeutete Zwischenstufen wie (IIIa) und (IV) das definierte Diol (V) und weiter das Ketal (VI) liefert.
P. A. GRIECO +3 more
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Journal of Inclusion Phenomena, 1987
Introduction. Calcimycin (or A.23187) belongs to the growing family of bacterial carboxylic polyether ionophores(1).It was isolated from a strain of Streptomyces Chartreusis NRRL 3882 (2).
M Prudhomme, G Jéminet
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Introduction. Calcimycin (or A.23187) belongs to the growing family of bacterial carboxylic polyether ionophores(1).It was isolated from a strain of Streptomyces Chartreusis NRRL 3882 (2).
M Prudhomme, G Jéminet
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ChemInform Abstract: Synthetic Studies on Antibiotic A23187 (Calcimycin). [PDF]
Chemischer Informationsdienst, 1984 AbstractAus dem Glucosid (I) sind die optisch aktiven Synthesebausteine (II) und (III) zugänglich, die zusammen mit dem Aminophenol (IV) als Bausteine für die Synthese von Calcimycin (V) verwendet werden.
Y. NAKAHARA, A. FUJITA, T. OGAWA
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Biochimica Et Biophysica Acta - General Subjects, 2017
Phenotypic screening led to the identification of calcimycin as a potent inhibitor of Mycobacterium bovis BCG (M. bovis BCG) growth in vitro and in THP-1 cells. In the present study, we aim to decipher the mechanism of antimycobacterial activity of calcimycin. We noticed that treatment with calcimycin led to up-regulation of different autophagy markers
Shradha Mawatwal +2 more
exaly +3 more sources
Phenotypic screening led to the identification of calcimycin as a potent inhibitor of Mycobacterium bovis BCG (M. bovis BCG) growth in vitro and in THP-1 cells. In the present study, we aim to decipher the mechanism of antimycobacterial activity of calcimycin. We noticed that treatment with calcimycin led to up-regulation of different autophagy markers
Shradha Mawatwal +2 more
exaly +3 more sources