Synthesis for hydroxyalkylated heterocyclic bases

Details Synthesis for hydroxyalkylated heterocyclic bases Synthesis for hydroxyalkylated heterocyclic bases

2002-08-08

2008-05-13

Berch, Mark L (Department: 1624)

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C544S277000

Reexamination Certificate

active

07371857

ABSTRACT:
A hydroxyalkylated heterocyclic base is prepared by reacting a heterocyclic base with an alkylene carbonate in dimethylacetamide as a solvent, wherein the hydroxyalkylated heterocyclic base is isolated from the solvent using isopropanol or tert-butylmethylether.

REFERENCES:
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patent: 5935946 (1999-08-01), Munger et al.
patent: 2001-213867 (2001-08-01), None
patent: 2001213867 (2001-08-01), None
Lubczak, R. “Reactions of Adenine with Ethylene Oxide and Propylene Oxide”Journal of Applied Polymer Science, 2002, pp. 489-497, vol. 86.

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