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Toward a total synthesis of an aglycone of spiramycin; a chiron approach to the C-1/C-4 and the C-13/C-15 fragments

✍ Scribed by P. Breuilles; G. Oddon; D. Uguen

Publisher: Elsevier Science
Year: 1997
Tongue: French
Weight: 265 KB
Volume: 38
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(97)01523-2

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Both homochiral acetates 4d and 5f, which were obtained by lipase-catalysed acetylation of either the tetraol 4a or the diol 5e, respectively, have been converted stereoconvergently into a C-5/C-9 fragment of the title antibiotic.

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Toward a Total Synthesis of an Aglycone of Spiramycin. Installation of the Hydroxy Groups at C-4 and C-5: A Model Study -[of osmium-mediated bis-hydroxylation of the allylic derivative (I)]. -(ODDON,