G. Sood, C. Schwalbe, W. Fraser
May 15, 1998
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Journal
Acta Crystallographica Section C-crystal Structure Communications
Abstract
The hydrogenolysis of 6-azido-9-(carboxymethyl)-2-methoxypurine methyl ester, (3), formed in a single step from 2,6-dichloro-9-(carboxymethyl)purine ethyl ester, (2), gave the title compound, C 9 H 11 N 5 O 3 , (1). The side chain attached at N9 avoids steric hindrance with the heterocycle by emerging almost orthogonally [C8-N9-C10-C11 -104.5(2)°] and the amino group at N6 donates intermolecular hydrogen bonds to the ring N1 and ester carbonyl O11 atoms.