Pyrido(2,3-d)pyrimidines. IV. Synthetic studies leading to various oxopyrido(2,3-d)pyrimidines.
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Chemical Phenomena↗
Biomedical subjects
J L Shim
Publications and source records attributed to J L Shim.
Triple helices formed by polyuridylic acid with some adenosine derivatives.
We have prepared a variety of derivatives of adenosine which, at neutral pH's, carry protonated amine functions. These derivatives form stable helical structures with polyuridylic acid, but the melting points are not substantially higher than those of helical complexes formed by adenosine derivatives lacking cationic groups.
Adenosine↗
Poly(U)-directed transamidation between adenosine 5'-phosphorimidazolide and 5'-phosphoadenosine 2'(3')-glycine ester.
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Adenosine Monophosphate↗
Studies on the acylation of some 6-aminouracil derivatives.
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Acetates↗