structurl drawing should be submitted as copy suitable for direct photographic reproduction and should fill space economically. Do not use strcuturs when a simple formula will suffice. Do not use multiple lines unnecessarily Analysis, Spectra Data The physical and chemical parameters of new compounds should be given in the following order and style: bpl02-103.C/260Pa Mp135-137C.[a]P2b+1344(c0.50,CH3OH)n31.3941mx(EtOH) 238( sh, logε34),258(intl,3.1)nm.vma:3420,3380(brOH),1675,1683(W ArC=0),1610,1588,1500(sAr)cmr1δ:078(,=8Hz,3H,2CH2CH),1.07d, J=8Hz,3H,3-CH3)2.96(s,H,3-OH), 390-426m,1H,3-H)701-7.7(m,1HArH)m(%)525(M46),507(MH2O,30) Anal. C12Hucifn4o Calcd C,44.21H,3.71,CL,13.05;F,27.08N,5.10. Found: c44.05H3.65CL,1292;F,26.88N,5.13 Crystallographic Data should be given in an order as follows: monoclinic, space group P21/n with cell d imensions of a=1. 2342(2), b=1.862(2), c=1.0042(2)nm β=10580(1),=2.2205nm3,Z=2,p=15854cm1 Nomenclature The attention of contributors is directed particularly to the requirement that all nomenclature should be consistent, clear, and unambiguou and conform with rules of nomenclature established by the International Union of Pure and Applied Chemistry, the International Union of Biochemistry, and Chemical abstracts service Acknow ledgements Personal acknowledgement will be published References to the literature and all notes regardless of their nture(except those in tables) should be numbered in a consecutive manner Literat ure references should be arranged and punctuated as shown 1. Pancansky, J. Koch, W. Miller, M.D.; J.Am. Chem Soc., 113, 317(1991) References to books should include author, title, volume, publisher, address, date of publications, and page number. 2. Minkin, V.I.; Simkin, B. Y. Minyaev, R. M; Quantum Chemistry oforganic Compounds, Spring-Verlag, New York, 1990, p. 23 3. Beckwith, A.J.L.; Ingold, K.U., in"Rearrangements in Ground and Excited States, Ed. De Mayo, P, Academic Press, New York, 1980, Vol. 1, p. 161 Manuscripts Three copies of the manuscripts must be provided. One should be a q paper( size A4). Margins of at least 4 cm must be left at top, bottom, and left-hand side. All pages of the manuscript should be numbered consecutively, including references and notes, figures and tables. The manucript should be written in clear and concise English. The responsibility for all aspects of manuscript preparation rests with the authors extensive changes or rewriting of the manuscript will notstructurl drawing should be submitted as copy suitable for direct photographic reproduction and should fill space economically. Do not use strcuturs when a simple formula will suffice. Do not use multiple lines unnecessarily. Analysis,Spectra Data The physical and chemical parameters of new compounds should be given in the following order and style:bp102-103oC/260Pa. Mp135-137oC. [ 12D +134.4(c 0.50, CH3OH),  D 1.3941.max(EtOH): 238(sh,log 3.4), 258(infl, 3.1) nm. max:3420,3380(br,OH), 1675,1683(w, ArC=0),1610,1588,1500(s,Ar) cm-1 .D:0.78(t,J=8Hz, 3H,2-CH2CH3), 1.07(d, J=8Hz,3H,3-CH3),2.96(s,1H,3-OH), 3.90-4.26(m,1H,3-H),7.01-7.7(m,1H,ArH).m/z(%):525(M+ ,46), 507(M+ -H2O,30). Anal.C12H11ClFN4O. Calcd: C,44.21;H,3.71;Cl,13.05;F,27.08;N,5.10. Found:C,44.05;H,3.65;Cl, 12.92; F,26.88;N,5.13. Crystallographic Data should be given in an order as follows: monoclinic , space group P21/n with cell dimensions of a = 1.2342(2), b= 1.862(2), c = 1.0042 (2)nm, = 105.80 (1), V=2.2205nm3 , Z= 2, = 15.854 cm-1 . NomenclatureThe attention of contributors is directed particularly to the requirement that all nomenclature should be consistent, clear, and unambiguous, and conform with rules of nomenclature established by the International Union of Pure and Applied Chemistry, the International Union of Biochemistry, and Chemical Abstracts Service. Acknowledgements Personal acknowledgement will be published. References to the literature and all notes regardless of their nture (except those in tables) should be numbered in a consecutive manner. Literature references should be arranged and punctuated as shown: 1. Pancansky,J.;Koch,W.; Miller,M.D.; J.Am.Chem.Soc.,113, 317 (1991). References to books should include author, title, volume, publisher, address, date of publications, and page number. 2. Minkin, V.I.; Simkin, B.Y.; Minyaev,R.M.; Quantum Chemistry of Organic Compounds, Spring-Verlag, New York, 1990, p.23 3. Beckwith, A.J.L.; Ingold,K.U., in “Rearrangements in Ground and Excited States”, Ed. De Mayo,P., Academic Press, New York, 1980, Vol. 1, p. 161. Manuscripts Three copies of the manuscripts must be provided. One should be a top quality original, double-spaced, typewritten or laser-printed, with quality paper( size A4). Margins of at least 4 cm must be left at top, bottom, and left-hand side. All pages of the manuscript should be numbered consecutively, including references and notes, figures and tables. The manucript should be written in clear and concise English. The responsibility for all aspects of manuscript preparation rests with the authors. Rxtensive changes or rewriting of the manuscript will not