Bicyclic ansamycins

U.S. Patent Number: 5387584

Abstract: This invention relates to compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and X are as defined below. Such compounds are useful as oncogene inhibitors and antitumor agents.

Inventors: Schnur; Rodney C. (Mystic, CT)

Assignee: Pfizer Inc. (New York, NY)

Application Number: 08/044,521

Issued: 1995-02-07

Expired: 2007-02-07

Classes: 514/183 ; 540/461

Field of search: 540/461 514/183

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