Jul-Aug 19841
Communications
739
12-m fused silica capillary column coated with methyl silicon was used for comparison and analysis. Analysis was done by temperature programming from 60-240”, 1.0 min initial hold, lO”/min, 1.0 min final hold. Injection was splitless. A Hewlett-Packard model 5992A gc-mass spectrometer equipped with a column similar to the H P 5840 column and interfaced with an H P 9825 model data system was used to perform g d m s analysis. Identification of compounds was made by direct comparison of Rt values of standard compounds and by computerized search with a stored H P mass spectral library in the gcims data system. ACKNOWLEDGMENTS W e thank Dr. Robert Petty, Marine Sciences Analytical Laboratory, UCSB, for aid in compound identification and the use of the gc/ms. The Santa Barbara Botanic Garden provided funding for this research. LITERATURE CITED P. Train, J.R. Henrichs, and W.A. Archer, “Contributions toward a flora of Nevada,” revised ed., Beltsville, MD: USDA, 1957, p. 139. 2. J.C.T. Uphof, “Dictionary of Economic Plants,” 2nd ed., New York: Stechert-Hafner Service Agency, 1948, p. 88. 3. B.M. Lawrence and J.K. Morton, Phytochemistry, 18,1887 (1979). 4 . B.D. Tanowitz, D.M. Smith, and S.A. Junak, Pbytocbemirtq. (in press). 1.
RKeived 29 September I983
TERPENOIDS OF H Y P T I S EMORY1 BARRYD TANOWITZ, Department of Biological Scimces, University of California Santa Barbara C A 93 I 0 6 STEVENA
JUNAK,
Santa Barbara Botanic Garden. 1212 Mission Canjon Road Santa Barbara C A 9310s
and DALEM S M I T H Department of Biological Sciences, Universitj of California Santa Barbara C A 93 I 0 6 Hyptzs emwyi Torrey (Lamiaceae) is a large, aromatic shrub and common component of washes and canyons ofthe Colorado, Mojave, and Sonoran deserts ofCalifornia, Arizona, and Baja California Norte (1). I t is one of approximately 350 species confined to the New World (2). In recent years, various chemical components of a few species in the genus, including H . emorjz, have been examined extensively for tumorigenic properties (3-6), antifertility properties (7-9), and as a mycotoxin and phytotoxin (10). As part ofa survey of pharmacological products produced by members of the mint family, we report terpenoid components for H . emoryi. W e have identified 34 volatile components from the essential oil of H . emoqi by gc and gc/ms. The compounds identified and their relative percentages were: y-terpinene (0. l ) , (-)-carve01 (0.4), piperitenol piperitenone (1. I ) , carn(0.6), bornyl acetate (0.6), geranial (O.?), L-carvone (0.7). P-phellandrene (0.8), phene(1. l ) , piperitone(l.3), camphor(l.3), linalool(l.3), 6-cadinene(l.4), myrcene(l.8), terpinen-401 (1,9), neral (2.0), citronellal (2.0), P-caryophyllene (2.5), trans-p-farnesene (2.8), decyl acetate (3.0), P-pinene (5.0), limonene (5.6), a-pinene (6.6), y-cadinene (6.71, 1,8-cineole (6.9), a-thujene ( 7 . 0 ) , elemol (7.0). and borneol ( 1 1.9). Other trace components were a-phellandrene, sabinene, geraniol, terpinolene, linalyl acetate, a-humulene, and a monoterpene alcohol.
740
Journal of Natural Products
{Vol. 47, No. 4
EXPERIMENTAL PLANTMATERIAI5-PlantS were collected by S.A.J. in San Diego County, California. A voucher specimen is deposited in the Santa Barbara Botanic Garden Herbarium. EXTRACTIONAND ANALYSIS.-Three separate isolation techniques were performed: steam distillation using a modified Clevenger apparatus, distillation using a Likens-Nikersson apparatus, and solvent extraction ( 1 1). Relative percentages of components were slightly higher for oxygenated monoterpenoids and sesquiterpenoids but were within one standard deviation of the values reported here in five trial runs using solvent extraction. Solvent extraction was done by grinding 35 g air-dried leaves in a mortar and pestle with two successive washings of 100 ml each ofn-pentane-Et,O (2: 1, v/v) and dry ice. The solution was filtered through glass wool over Na,S04 and concentrated to dryness under N, in an ice bath. The residue was resolvated with 3 ml of hexane (boiling point, 68.5-69.4') and refiltered with a 0.5 pn Millipore Syringe filter equipped with a Swinney adaptor. The solution was analyzed immediately by gc and gc/ms. Two chromatographs equipped with flame ionization detectors were used. A Hewlett-Packard model 5831A gc equipped with 3% OV-17 on Chromosorb W H P 100/120 H A W DCMS (2 mmX 1.8 m glass column). Analysis was done by temperature programming from 100-270". 1.0 min initial hold, lO"/min, 5.0 min final hold. The carrier gas was Helium at 27 ml/min. A Hewlett-Packard model 5840 gc equipped with a 12-m fused silica capillary column coated with methyl silicon was used for comparison and analysis. Analysis was done by temperature programming from 60-240", 1.0 min initial hold, lO"/min, 2 . 0 min final hold. Injection was splitless. A Hewlett-Packard model 5992A gc-mass spectrometer equipped with a column similar to the H P 5840 column and interfaced with an H P 9825 model data system was used to perform gc/ms analysis. Identification of compounds was made by direct comparison of Rt values of standard compounds and by computerized search with a stored H P mass spectral library in the gc/ms data system. ACKNOWLEDGMENTS W e thank Dr. Robert Petty, Marine Sciences Analytical Laboratory, UCSB, for aid in compound identification and the use of the gc/ms. The Santa Barbara Botanic Garden provided funding for this research. LITERATURE CITED 1. 2. 3.
4. 5. 6. 7. 8. 9. 10. 11.
P.A. Munz, "A California flora," Berkeley: University of California Press, 1959, p. 178 C. Epling, Proc. Sixth Par. Sri. Congress, Iv, 571 (1939). V.F. German,]. Phurm. Sci., 60,649 (1971). K. Sheth, S. Jolad, R. Wiedhopf, and J.R. Cole,]. Phurm. Sri., 61, 1819 (1972). D.G.I. Kingston and W . V . Zucker,]. N u t . Prod., 42, 652 (1978). D.G.I. Kingston, M.M. Rao, and W . V . Zucker,]. N u t . Prod., 42, 469 (1979). S.K. Garg, Zndiun]. Med. Res., 64,1133 (1976). A.K. Salujaand D.D. Santini, Zndiun Drugs, 19, 127 (1981). A.K. Saluja, D . D . Santam, and J . D . Singh, lndiun Drugs. 19, 84 (1981). D.K. Pandey, N . N . Tripathi, R.D. Tripathi, and S.N. Dixit, Z.Phnzenkr. Pjlunzensrhurz, 89, 344 (1982). B.D. Tanowitz, D.M. Smith, and S.A. Junak, Phytochemistry (in press).
Rereived29 September 1983
