Process for the synthesis of 4',5'-unsaturated nucleosides

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

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536 23, C07H 1700

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045529558

ABSTRACT:
Process for the production of 4',5'-unsaturated nucleosides via a novel compound, 5'-Se-(2- or 4-nitrophenyl)-selenonucleoside, is disclosed, said selenonucleoside being represented by the formula ##STR1## wherein R is a hydrogen atom or a hydroxyl group, A is 2- or 4-nitrophenyl group and B is a base.

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