Efficient total synthesis of AI-77-B, A gastroprotective substance from bacillus pumilus AI-77

Divalent lanthanide derivatives in organic synthesis. 1. Mild preparation of samarium iodide and ytterbium iodide and their use as reducing or coupling agents

Philippe Girard, Jean‐Louis Namy, Henri B. Kagan · Journal of the American Chemical Society · 1980 · 1.3K citations

Natural Sciences, Chemistry, Inorganic Chemistry +12

New methods and reagents in organic synthesis. 67. A general synthesis of derivatives of optically pure 2-(1-aminoalkyl)thiazole-4-carboxylic acids

Yasumasa Hamada, Makoto Shibata, Tsuneyuki Sugiura et al. · The Journal of Organic Chemistry · 1987 · 203 citations

Natural Sciences, Chemistry, Natural Product Biosynthesis +9

Conversion of L-pyroglutamic acid to 4-alkyl-substituted L-prolines. The synthesis of trans-4-cyclohexyl-L-proline

John K. Thottathil, Jerome L. Moniot, Richard H. Mueller et al. · The Journal of Organic Chemistry · 1986 · 150 citations

Natural Sciences, Biochemistry, Chemistry +6

New methods and reagents in organic synthesis, 29, A practical method for the preparation of optically acive N-protected .ALPHA.-amino aldehydes and peptide aldehydes.

Yasumasa Hamada, Takayuki Shioiri · Chemical and Pharmaceutical Bulletin · 1982 · 111 citations · Full text

Natural Sciences, Chemistry, Organic Chemistry +7

An extensive survey by the use of high performance liquid chromatography on racemization during the coupling of benzyloxycarbonyl-L-phenylalanyl-L-valine with L-proline tert-butyl ester.

SHOJI TAKUMA, Yasumasa Hamada, Takayuki Shioiri · Chemical and Pharmaceutical Bulletin · 1982 · 84 citations · Full text

Pharmacy, Chemistry, Chromatographic Analysis +13