JOURNAL OF NATURAL PRODUCTS® (LLOYDIA) P u b l i s h e d b y THE AMERICAN SOCIETY OF PHARMACOGNOSY and THE LLOYD LIBRARY A N D MUSEUM 9 1 7 PLUM STREET, CINCINNATI, OHIO 4 5 2 0 2 Editor
A . DOUGLAS KINGHORN
College of Pharmacy University of Illinois at Chicago Chicago, Illinois 60612 Editorial
Associate Editor and Book Review Editor D A V I D G.I.
KINGSTON
Department of Chemistry Virginia Polytechnic Institute and State University Blacksburg, Virginia 2 4 0 6 1 Associate Editor H A R R Y H.S.
FONG
College of Pharmacy University of Illinois at Chicago Chicago, Illinois 6 0 6 1 2 Associate Editor R I C H A R D G.
Advisory
Board
J O H N M. CASSADY
PIERRE POTIER
Columbus, Ohio
Gif-sur-Yvette, France
CHING-JER C H A N G
KENNETH L. RINEHART
West Lafayette, Indiana
Urbana-Champaign, Illinois
GEOFFREY A. CORDELL
JAMES E. ROBBERS
Chicago, Illinois
West Lafayette, Indiana
N O R M A N R. FARNSWORTH
J O H N P. ROSAZZA
Chicago, Illinois
Iowa City, Iowa
WILLIAM FENICAL
PAUL J. SCHEUER
La Jolla, California
Honolulu, Hawaii
HEINZ G. FLOSS
FRANCIS J. SCHMITZ
Seattle, Washington
Norman, Oklahoma
POWELL
National Center for Agricultural Utilization Research, USDA, ARS 1815 N o r t h University Street Peoria, Illinois 6 1 6 0 4 Managing Editor
ISAO KITAGAWA
YUZURU SHIMIZU
Osaka, Japan
Kingston, Rhode Island
K U O - H S I U N G LEE
O T T O STICHER
Chapel Hill, North Carolina
Zurich, Switzerland
LESTER A. MITSCHER
VARRO E. TYLER
Lawrence, Kansas
West Lafayette, Indiana
KOJI NAKANISHI
ROBERT VERPOORTE
New York, New York
Leiden, The Netherlands
S. WILLIAM PELLETIER
HlLDEBERT W A G N E R
Athens, Georgia
Munich, Germany
MARYMEL K. RYAN
GEORGE R. PETTIT
MONROE E. WALL
College of Pharmacy University of Illinois at Chicago Chicago, Illinois 60612
Tempe, Arizona
Research Triangle Park, North Carolina
SUSAN C. STITES
C/O The Lloyd Library 917 Plum Street Cincinnati, Ohio 45202 Editorial Assistant
J. D A V I D PHILLIPSON
London, England
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P R I N T E D BY T H E S P A H R A N D G L E N N C O M P A N Y , COLUMBUS, O H I O 4 3 2 1 5
Date of Issue—May 26, 1995