Search Results - "Date, Tadamasa"

Catalytic asymmetric nitroaldol reaction using optically active rare earth BINOL complexes: investigation of the catalyst structure by Sasai, Hiroaki, Suzuki, Takeyuki, Itoh, Noriie, Tanaka, Koichi, Date, Tadamasa, Okamura, Kimio, Shibasaki, Masakatsu

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A Novel Method for a Stereoselective Synthesis of Trisubstituted Olefin Using Tricarbonyliron Complex:  A Highly Stereoselective Synthesis of (all-E)- and (9Z)-Retinoic Acids by Wada, Akimori, Hiraishi, Saeko, Takamura, Norio, Date, Tadamasa, Aoe, Keiichi, Ito, Masayoshi

“…In order to establish the stereoselective synthesis of retinoic acids, which are ligand molecules of the retinoic acid receptors (RARs, all-E-isomer) and the…”
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Formal Total Synthesis of (-)-Dendrobine Using Zirconium-Promoted Reductive Cyclization by Uesaka, Noriaki, Saitoh, Fumihiko, Mori, Miwako, Shibasaki, Masakatsu, Okamura, Kimio, Date, Tadamasa

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Novel Synthesis of Heterocycles Using Zirconium-Catalyzed Diene Cyclization by Uesaka, Noriaki, Mori, Miwako, Okamura, Kimio, Date, Tadamasa

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Stereoselective reactions. 26. Solution structures of chiral bidentate lithium amide in relation to the solvent-dependent enantioselectivities in deprotonation reaction by Sato, Daisaku, Kawasaki, Hisashi, Shimada, Ichio, Arata, Yoji, Okamura, Kimio, Date, Tadamasa, Koga, Kenji

“…6Li- and 15N-NMR spectroscopic analyses of a labeled chiral bidentate lithium amide ( [ 6 Li, 15 N 2]-(R)- 1 ) have shown that it exists as a chelated monomer…”
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Synthesis and X-ray crystal structures of tricyclic ketone containing trans-fused bicyclo[3.3.0]octane unit by Saitoh, Fumihiko, Mori, Miwako, Okamura, Kimio, Date, Tadamasa

“…Zirconium promoted diene cyclization of 13 and 17 followed by carbonylation and treatment with iodine and then 10% HCl gave two tricyclic ketones, 16a and 16b,…”
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Stereospecific nucleophilic addition reactions to olefins. Addition of thiols to .alpha.,.beta.-unsaturated carboxylic acid derivatives by Miyata, Okiko, Shinada, Tetsuro, Ninomiya, Ichiya, Naito, Takeaki, Date, Tadamasa, Okamura, Kimio, Inagaki, Satoshi

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Receptors for oxo acids: effects of intra-ion-pair hydrogen bonding on acid-base equilibria by Manabe, Kei, Okamura, Kimio, Date, Tadamasa, Koga, Kenji

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Receptor for a phosphonic acid monoester: salt formation stabilized by three hydrogen-bonding interactions by Manabe, Kei, Okamura, Kimio, Date, Tadamasa, Koga, Kenji

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Syntheses and X-Ray Crystal Structures of Tricyclic Ketones Containing Trans-Fused Azabicyclo[3.3.0]octane Units by Mori, Miwako, Saitoh, Fumihiko, Uesaka, Noriaki, Okamura, Kimio, Date, Tadamasa

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Synthesis and Biological Evaluation of Alkyl, Alkoxy, Alkylthio, or Amino-Substituted 2, 3-Dihydro-1, 5-benzothiazepin-4(5H)-ones by INOUE, Hirozumi, KONDA, Mikihiko, HASHIYAMA, Tomiki, OTSUKA, Hisao, WATANABE, AKishige, GAINO, Mitsunori, TAKAHASHI, Kaoru, DATE, Tadamasa, OKAMURA, Kimio, TAKEDA, Mikio, NARITA, Hiroshi, MURATA, Sakae, ODAWARA, AKio, SASAKI, Haruhiko, NAGAO, Taku

“…2, 3-Dihydro-1, 5-benzothiazepin-4(5H)-ones substituted with an alkyl, alkoxy, alkylthio, hydroxy, or amino group on the fused benzene ring of the 1,…”
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TMC-2A, -2B and -2C, new dipeptidyl peptidase IV inhibitors produced by Aspergillus oryzae A374. II. Isolation and structure determination by Asai, Y, Nonaka, N, Nishio, M, Okamura, K, Date, T, Sugita, T, Ohnuki, T, Komatsubara, S

“…New dipeptidyl peptidase IV inhibitors, TMC-2A, -2B, and -2C, were isolated from the fermentation broth of Aspergillus oryzae A374. On the basis of chemical,…”
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Preparation of optically pure 3'-methylspiro[imidazolidine-4,4'(1'H)-quinazoline]-2,2',5(3'H)-trione by combination of optical resolution and racemization by Yamagishi, Masafumi, Yamada, Yoshihisa, Ozaki, Kenichi, Date, Tadamasa, Okamura, Kimio, Suzuki, Mamoru, Matsumoto, Kazuo

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Purines. LXVI. Adenine 7-Oxide : Its Synthesis, Chemical Properties, and X-ray Molecular Structure by FUJII, Tozo, OGAWA, Kazuo, SAITO, Tohru, KOBAYASHI, Keiko, ITAYA, Taisuke, DATE, Tadamasa, OKAMURA, Kimio

“…A detailed account is given of the first unequivocal synthesis of adenine 7-oxide (8). The synthesis started with peroxycarboxylic acid oxidation of…”
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Crystallographic and lithium-6 and nitrogen-15 NMR studies of a chiral bidentate lithium amide. An effect of aggregation states on an enantioselective deprotonation reaction by Sato, Daisaku, Kawasaki, Hisashi, Shimada, Ichio, Arata, Yoji, Okamura, Kimio, Date, Tadamasa, Koga, Kenji

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Purines. LXVII. An Alternative Synthesis of Adenine 7-Oxide : N-Oxidation of the Adenine Ring Utilizing Blocking/Deblocking at the 1-Position by FUJII, Tozo, OGAWA, Kazuo, SAITO, Tohru, ITAYA, Taisuke, DATE, Tadamasa, OKAMURA, Kimio

“…Oxidation of 1-benzyladenine (12) with m-chloroperoxybenzoic acid in MeOH or in MeOH-0.5 M phosphate buffer (pH 6.6) has been found to afford 1-benzyladenine…”
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Purines. LXX. An Extension of the "Phenacylamine Route" to the Syntheses of the 7-N-Oxides of 6-Mercaptopurine and 6-Methylthiopurine, and Antileukemic Activity of Some Purine N-Oxides by FUJII, Tozo, OGAWA, Kazuo, ITAYA, Taisuke, DATE, Tadamasa, INAGAKI, Jin-ichiro, NOHARA, Fujio

“…A full account is given of the first syntheses of 6-mercaptopurine 7-N-oxide (4) and 6-methylthiopurine 7-N-oxide (5). The synthesis of 4 followed a…”
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Synthetic Approaches towards Mitomycins: Synthesis of the Decarbamoyloxymitomycin Derivative by Shibasaki, Masakatsu, Ban, Yoshio, Nakajima, Shigekazu, Yoshida, Kiyoshi, Mori, Miwako, Date, Tadamasa

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BENZYLIDENECYANOMETHYL-1, 3-BENZAZOLES AS 1-AZA-1, 3-BUTADIENES by SAKAMOTO, Masanori, NOZAKA, Asae, SHIMAMOTO, Mino, OZAKI, Hideki, SUZUKI, Yoko, YOSHIOKA, Sanae, NAGANO, Mayumi, OKAMURA, Kimio, DATE, Tadamasa, TAMURA, Osamu

“…Diels-Alder reactions of benzylidenecyanomethyl-1, 3-benzothiazoles and -1, 3-benzoxazoles 2a-f as 1-aza-1, 3-butadienes are described. The dienes 2, featuring…”
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Synthetic approaches toward mitomycins: construction of p-quinone moiety on 1-benzazocine derivative by Yoshida, Kiyoshi, Nakajima, Shigekazu, Ohnuma, Takeshi, Ban, Yoshio, Shibasaki, Masakatsu, Aoe, Keiichi, Date, Tadamasa

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