Steroidal intermediates from the condensation product of dimethyl-3-ketoglutarate and glyoxal
AssigneeThe United States of America as represented by the Department of Health, Education and Welfare
InventorsUlrich Weiss, Kenner C. Rice
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Abstract
Tricyclic aromatic compounds of the formula ##STR1## including those wherein: A. R.sub.1 is H, R.sub.2 is carbomethoxy, and R.sub.3 is methyl; B. R.sub.1 is acetyl, R.sub.2 is carbomethoxy, and R.sub.3 is methyl; C. R.sub.1 and R.sub.3 are methyl and R.sub.2 is carbomethoxy; D. R.sub.1, R.sub.2, and R.sub.3 are hydrogen; and E. R.sub.1 and R.sub.3 are methyl and R.sub.2 is hydrogen Are intermediates for the total synthesis of steroids.
Claims6
A tetrahydrocyclopentano[a]naphthalene compound of the formula ##STR18## wherein R.sub.1 is H, acetyl, or methyl;
- R.sub.2 is hydrogen or carbomethoxy;
- R.sub.3 is hydrogen or methyl.
Dependencies are inferred from the claim text.