RICH, Judge.
This appeal is from the decision of the United States Patent and Trademark Office (PTO) Board of Appeals (board) affirming the rejection of claims 1-5 in appellants' application, serial No. 461,011, filed April 15, 1974, for "Androst-4-en-19-ols," under 35 U.S.C. § 103 as obvious from the teachings of the prior art references. We affirm the rejection of claims 1 and 5. We reverse the rejection of claims 2-4.
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