CHINESE CHEMICAL LETTERS

VOL. 16, NO. 11, 2005

CONTENTS

A facile one-pot method for the synthesis of vinyl ethers from 2-hydroxyalkyl phenyl selenides.................................................S. R. SHENG, H. R. LUO, W. K. SUN, X. HUANG  

 

1421

A new and efficient synthesis of 2H-3, 1-benzoxazine compounds.................................

........................................................................................................................J. R. LI, S. L. MA  

 

1424

Asymmetric Baylis-Hillman reaction between chiral activated alkenes and aromatic aldehydes in Me3N/H2O/solvent medium...........................................................................

..............................................K. HE, Z. H. ZHOU, H. Y. TANG, G. F. ZHAO, C. C. TANG  

 

 

 

1427

Synthesis of a novel a-methylene-b-carboxy-g-thiobutyrolactones..............................

...............................................................................................X. K. WANG, J. L. KANG, S. LI  

 

1431

 

Design, synthesis and investigation of bone affinity of the conjugates of 5-fluorouracil and hydroxybisphosphonate.................L. H. XU, H. ZHENG, L. L. WENG  

 

1434

 

Convenient and highly efficient inversion of 1b-OH configuration of trans-vitamin D3....................................Y. B. HAN, J. P. CHEN, Y. Y. LI, B. N. LIU, G. Q. YANG, Y. LI  

 

 

1437

Synthesis and bioactivity of isosteviol derivatives: a facile method for preparation of Ent-16α-hydroxy-15β-hydroxymethylbeyeran-19-oic acid.............................................

...................................J. C. TAO, G. Q. TIAN, Y. B. ZHANG, Y. Q. FU, G. F. DAI, Y. WU  

 

 

 

1441

Studies on the synthesis of morphinan alkaloid:preparation of the key allylic silyl ether precursor.....................................................................................................................

..........................................Z. L. SONG, Y. Q. TU, S. H. GAO, Y. J. JIANG, S. Y. ZHANG  

 

 

1445

Total synthesis of (-)-tetrahydrolipstatin by the tandem Mukaiyama-aldol lactonization...........................................J. YIN, X. B. YANG, Z. X. CHEN, Y. H. ZHANG  

 

 

1448

Synthesis of 2,2'-(substituted arylmethylene)bis(1,6,6-trimethyl-6,7,8,9-tetra- hydrophenanthro[1,2-b]furan-10,11-dione) derivatives................................J. K. QIN, X. Z. BU, Y. F. WANG, Z. Y. DU, X. Y. WANG, Z. S. HUANG, L. MA, L. K. AN, L. Q. GU  

 

 

 

1451

Photopromoted carbonylation of alkyl bromides catalyzed by copper salts under ambient conditions..............................................................................................................

................T. WEN, Y. P. JIA, D. B. GAO, J. M. YIN, G. Y. ZHOU, J. LIU, X. S. WANG  

 

 

 

1455

Pinacol coupling reactions catalyzed by active zinc.......................................................

..........................................................................................H. ZHAO, W. DENG, Q. X. GUO  

 

 

1459

Facile synthesis of ophipogonin C¢ and its three analogues........................................

..........................................................S. J. HOU, C. C. ZOU, L. ZHOU, P. S. LEI, D. Q. YU  

 

 

1463

Aerobic enantioselective epoxidation of styrene analogues induced by (β-diketone)-iron(III) complex.............Q. F. CHENG, X. Y. XU, W. X. MA, S. J. YANG, T. P. YOU  

 

 

  1467

Enantioseparation of racemic anti-hepatitis new drug bicyclol with crystallization........................................................................W. HU, Y. LI, C. Z. ZHANG  

 

 

1471

A new Diels-Alder type adduct and a new flavone from the stem and root bark of Morus mongolica.........................................................J. KANG, R. Y. CHEN, D. Q. YU  

 

 

1474

A novel dimeric eremophilane from Ligularia virgaurea spp. Oligocephala..........

...................................................................................................Q. X. WU, X. LIU, Y. P. SHI  

 

 

1477

A new alkaloid from Sinomenium acutum.......................................................................

........................................................................W. M. CHENG, F. QIU, L. J. WU, X. S. YAO  

 

 

1481

A new β-carboline alkaloid and a new derivate of isoferulic acid from Anemone altaica..........................................................................Z. J. ZOU, Y. S. DONG, J. S. YANG  

 

 

1484

A new sesquiterpene from transformation of curdione by cell suspension culture of Platycodon Grandiflorum…..................................….....X. C. MA, L. J. WU, D. A. GUO  

 

 

1487

A novel hydroperoxyl substituted cembranolide diterpene from marine soft coral Lobophytum crassum................................S. W. YIN, Y. P. SHI, X. M. LI, B. G. WANG  

 

 

1489

Tryptophan modification and fluorescence spectrum of hyaluronidase....................

...................................................................................................................L. R. TENG, Y. Z. CHU, X. P. ZHANG, X. K. YU, J. WANG, S. HAN, B. X. ZHANG, H. FAN, L. Y. LIU  

 

 

 

1492

New sorbent for bilirubin removal from human plasma: albumin immobilized microporous membranous PTFE capillaries.......................................L. ZHANG, G. JIN

 

 

1495

Simultaneous determination of heroin, amphetamine and their basic impurities and adulterants using microemulsion electrokinetic chromatography..............................

............T. WEN, X. ZHAO, G. A. LUO, J. WANG, Y. M. WANG, P. LI, J. ZHU, Z. S. YU

 

 

 

1499

A new molecularly imprinted polymer for solid-phase extraction of cotinine from human urine.........................................................................................................................

........................................J. YANG, X. L. ZHU, J. B. CAI, Q. D. SU, Y. GAO, L. ZHANG  

 

 

 1503

 

NMR studies on the subacute biochemical effects of aristolochic acid on rat serum

.............................................................X. Y. ZHANG, H. F. WU, X. J. LI, F. K. PEI, J. Z. NI  

 

 

1507

Capillary electrophoretic determination of jinggangmycin A in formulations using direct UV detection.........................................................J. HE, X. LIU, Y. S. LIU, Z. N. YU  

 

 

1511

Spectrophotometric and voltammetric studies on the interaction of heparin with phenosafranine.....................................................................W. SUN, Y. Q. DING, K. JIAO  

 

 

1515

Solid state NMR and fluorescence studies of conjugated polymer nanocomposties...

..............................................................................C. J. JING, L. S. CHEN, Y. SHI, X. G. JIN  

 

 

1519

Controlled synthesis of dendritic polyaniline fibers with diameters from nanosize to submicrometersize..................................................................................................................

..................................X. C. WANG, S. J. DING, J. CAO, F. L. WU, C. ZHOU, Z. Z. YANG  

 

 

 

1523

Dynamic mechanical behavior of a novel polymeric composite damping material...

....................................................................................C. ZHANG, J. F. SHENG, C. A. MA  

 

1527

 

Preparation of multiwall carbon nanotubes-supported high loading platinum for vehicular PEMFC application.........................................................................................

..........................................B. Zhang, L. J. Chen, K. Y. GE, Y. C. GUO, B. X. PENG

 

 

 

1531

Enhancement of activity of SnO2-doped In2O3/Al2O3 catalyst for NO reducetion with propene in the presence of H2O and SO2..............................................................

............................................................................X. Y. CUI, J. H. LI, J. M. HAO, L. X. FU 

 

 

1535

 

Preparation of nano-crystalline tungsten carbide thin film by magnetron sputtering and their electrocatalytic property for PNP reduction...................................................

................................................................................H. J. ZHENG, J. G. HUANG, C. A. MA  

 

 

 

1539

Interfacial behaviors of azocalixarene derivatives at the air / water interface and photochromism in the Langmuir-Blodgett films..............................................................

............................................X. GUO, L. ZHANG, G. Y. LU, M. F. YIN, F. LIU, M. H. LIU  

 

 

 

1543

Oscillating frequency response of a langasite crystal microbalance in liquid phase

..................................................................Q. KANG, H. J. ZHANG, X. Y. LIU, D. Z. SHEN  

 

 

1547

A hybrid ant colony optimization for the prediction of protein secondary structure..

........................................................C. CHEN, Y. X. TIAN, X. Y. ZOU, P. X. CAI, J. Y. MO

  

 

1551

Spacial structure of cationic phosphorus ligand–Ru (II) halide complexesby DFT study..............................................................................................Y. X. ZHAO, S. G. WANG  

 

 

1555

Predicting the relative retention time (RRT) of polybrominated diphenyl ethers (PBDEs)...............................................................S. S. LIU, Y. LIU, D. Q. YIN, L. S. WANG

 

1559