Application of Herman Hoeksema

KIRKPATRICK, Judge.

This appeal is from a decision of the Board of Appeals affirming the examiner’s rejection of claim 1 in appellant’s application serial No. 30,770, filed May 23, 1960, for “9-D-Psicofuranosylpurine and 6-Substituted Derivatives.” Claims 2 and 11-25 were allowed.

The subject matter is best illustrated by the appealed claim which reads: 1

1. An N-psieofuranoside having the formula:

wherein A is selected from the class consisting of hydrogen, the group -XR wherein R is selected from the class consisting of hydrogen, lower-alkyl, and lower-aralkyl, and X is selected from the class…