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Semi-synthesis of A23187 (calcimycin) analogs

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Summary

The 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.

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References

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Acknowledgment. The authors are very grateful to Drs G. Dauphin and J.Y. Lallemand for the NMR-spectra at 400 MHz performed in Gif-sur-Yvette, To Dr J.G. Gourcy and Mrs G. Kergomard for technical assistance.

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Prudhomme, M., Jeminet, G. Semi-synthesis of A23187 (calcimycin) analogs. Experientia 39, 256–258 (1983). https://doi.org/10.1007/BF01955290

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