English Journal

Solvent-dependent conformation of a regioselective amylose carbamate: Amylose-2-acetyl-3,6-bis(phenylcarbamate).

Tsuda M, Terao K, Kitamura S, Sato T.SourceDepartment of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
Biopolymers.Biopolymers.2012 Dec;97(12):1010-7. doi: 10.1002/bip.22118.
Six amylose-2-acetyl-3,6-bis(phenylcarbamate) (AAPC) samples ranging in weight-average molar mass M(w) from 1.8 × 10(4) g mol(-1) to 1.1 × 10(6) g mol(-1) have been prepared from enzymatically synthesized amylose samples. Static light scattering, small-angle X-ray scattering, sedimentation eq
PMID 22987591

Identification and characterization of four process-related impurities in retigabine.

Wang X, Zhou H, Zheng J, Huang C, Liu W, Yu L, Zeng S.SourceCollege of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; Zhejiang Jiuzhou Pharmaceutical Co., Ltd., 99 Waisha Road, Taizhou 318000, China; School of Forestry and Bio-technology, Zhejiang Agriculture & Forestry University, 88 Huanbei Road, Lin'an 311300, China.
Journal of pharmaceutical and biomedical analysis.J Pharm Biomed Anal.2012 Dec;71:148-51. doi: 10.1016/j.jpba.2012.07.035. Epub 2012 Aug 21.
HPLC analysis of retigabine, a novel antiepileptic drug revealed four previously unknown impurities. These were identified by liquid chromatography-tandem mass spectrometry using electrospray ionization and quadrupole time-of-flight mass analyzer. Further, the structures of the impurities were confi
PMID 22954446

Japanese Journal

Chiroptical properties of cholesteric liquid crystals of chitosan phenylcarbamate in ionic liquids

Ochiai Takaaki,Terao Ken,Nakamura Yasuko,Yoshikawa Chiaki,Sato Takahiro
Polymer 53(18), 3649-3950, 2012-08-17
… Light and small-angle X-ray scattering and viscosity measurements were made for four curdlan tris(phenylcarbamate) (CdTPC) samples having quite narrow dispersity indices (DI) and ranging in the molecular weight between 6×10^4 and 2×10^6, to determine weight-average molecular weights Mw, radii of gyration <S^2>, particle scattering functions P(q), and intrinsic viscosities [η] in tetrahydrofuran (THF) and 4-methyl-2-pentanone (MIBK). …
NAID 120005316305

A novel method to prepare methyl (4-trifluoromethoxy)phenylcarbamate and its analogues under mild conditions

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Journal of Pesticide Science 36(2), 252-254, 2011
… Methyl (4-trifluoromethoxy)phenylcarbamate, the key intermediate for the synthesis of various excellent pesticides, was synthesized using two new, convenient methods with excellent yield and low cost compared to existing methods. …
NAID 130004939634