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Croatica Chemica Acta, Vol. 45 No. 2, 1973.

Izvorni znanstveni članak

Bromination of Tetracycline

D. Bilović ; Institute »Ruder Boskovic«, 41000 Zagreb, Croatia, Yugoslavia
V. Škarić ; Institute »Ruder Boskovic«, 41000 Zagreb, Croatia, Yugoslavia
S. Djokić ; Research Department »Pliva«, Pharmaceutical and Chemical Works, 41000 Zagreb, Croatia, Yugoslavia

Puni tekst: engleski pdf 5.669 Kb

str. 357-361

preuzimanja: 308

citiraj

Sažetak

Tetracycline (I) reacts with bromine in the presence of pyridine
to form lla-bromotetracycline-6,12-hemiketal (II). Dehydration
of II, preferably in a mixture of .sulfuric acid and acetonitrile, yields
lla-bromo-6-methylenetetracycline (III) as sulfate, which affords
6-methylenetetracycHne (VI) upon reduction. Evidence to support
the structures of these products comes from elementary analysis,
UV, IR and NMR data.

Ključne riječi

Hrčak ID:

197031

URI

https://hrcak.srce.hr/197031

Datum izdavanja:

30.6.1973.

Posjeta: 594 *