Investor Eli S. Jacobs moved up the ladder to chairman ofSyStemix Inc. of Palo Alto, Calif. The company, which developedthe SCID-hu experimental mouse, also signed on as directorsformer chief executive officers of Glaxo Inc. and BoehringerIngelheim Corp.

Jacobs replaces as chairman David Rubinfien, who wasSyStemix's president and chief executive officer until LindaSonntag took over those jobs last March. Jacobs, who isexperienced in fields from retailing to baseball (BaltimoreOrioles), was chosen because board members see him as a verysuccessful businessman whom people respected, Sonntag said.

New directors are Joseph Ruvan Jr. from Glaxo and Dr. HarveySadow from Boehringer, who on Tuesday was also namedchairman of Cortex Pharmaceuticals of Irvine, Calif.

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