Title: 21-Acetals and mixed acetals of steroidal 21-aldehydes, intermediates and methods of preparation

Abstract: 21-ACETALS AND MIXED ACETALS OF STEROIDS OF THE CORTICOID SERIES ARE PREPARED FROM THE CORRESPONDING 21-HYDROXY STEROIDS AND HAVE UTILITY AS ANTI-INFLAMMATORY AGENTS.

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Inventors: Marx, Michael (Sunnyvale, CA, US)
Kertesz, Denis John (Menlo Park, CA, US)

Application Number: 593903
Filing Date: 1975-07-07
Publication_date: 1977-03-08
Assignee: Syntex (U.S.A.) Inc. (Palo Alto, CA)
Primary Class(es): 514/174 514/179, 514/180, 514/182, 540/63, 540/67, 540/69, 540/70, 552/9, 552/554, 552/573, 552/574, 552/594, 552/595
Other Classes:
US Patent Ref:

3519659	Jul, 1970	Schmidlin et al.	260/397.
3519660	Jul, 1970	Schmidlin et al.	260/397.

Other Refs:
Primary Examiner: Roberts, Elbert L.
Assistant Examiner:
Attorney: Krubiner; Alan M., Walker; William B., Jensen; Natalie