5,5-Difluorouracil

Details 5,5-Difluorouracil 5,5-Difluorouracil

1977-03-14

1981-01-20

Coughlan, Jr., Paul M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C07D23954

Patent

active

042464110

ABSTRACT:
Direct fluorination of uracil, cytosine and their derivatives, in the presence of a non-aqueous solvent, by fluorine gas to produce 5-fluorouracil, 5-fluorocytosine, 5-fluorouracil derivatives and 5-fluorocytosine derivatives is disclosed. The non-aqueous solvent is an acid or alcohol, which can be partly or fully fluorinated or chlorinated, of up to 8 carbon atoms, such as trifluoroacetic acid. Novel compounds produced by the reaction, such as 5,5-difluoro-5,6-dihydro-6-(2,2,2-trifluoroethoxy) uracil are also disclosed. The derivatives and 5-fluorocytosine are useful as germicidal and antineoplastic agents while 5-fluorouracil itself is a known cancer chemotherapy agent.

REFERENCES:
patent: 3846429 (1974-11-01), Giller et al.
patent: 3954758 (1976-05-01), Schuman et al.

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