Papers - Toshima, Kazunobu

Target-selective degradation of proteins by porphyrins upon visible photo-irradiation

S. Tanimoto MATSUMURA SHUICHI K. Toshima

Chemical Communications (RSC Publishing)   ( 31 ) 3678-3680 2008.08

Research paper (scientific journal), Joint Work, Accepted

Chemoselective reduction of Aldehydes over ketones with sodium tris(hexafluoroisopropoxy)borohydride

Y. Kuroiwa MATSUMURA SHUICHI K. Toshima

Synlett (Thieme)   ( 16 ) 2523-2525 2008.08

Research paper (scientific journal), Joint Work, Accepted

Lipase-catalyzed ring-opening polymerization of molecularly pure cyclic oligomers for use in synthesis and chemical recycling of aliphatic polyesters

A. Kondo, S. Sugihara, M. Kuwahara, K. Toshima MATSUMURA SHUICHI

Macromoleculalr Bioscience (Wiley-VCH)  8 ( 6 ) 533-539 2008.06

Research paper (scientific journal), Joint Work, Accepted

Poly(ricinoleic acid) based novel thermosetting elastomer

Hiroki Ebata, Mayumi Yasuda, Kazunobu Toshima, MATSUMURA SHUICHI

Journal of Oleo Science (日本油化学会)  57 ( 6 ) 315-320 2008.06

Research paper (scientific journal), Joint Work, Accepted

Non-natural glycosyl anthraquinones as DNA binding and photocleaving agents

TOSHIMA KAZUNOBU

Topics in Current Chemistry-Anthracyclines Chemistry and Biology (Springer)     285-298 2008.05

Research paper (scientific journal), Single Work

Chemoenzymatic Synthesis and Chemical Recycling of Sustainable Polyurethanes

Yoshio Yanagishita, Makoto Kato, Kazunobu Toshima, and Shuichi Matsumura MATSUMURA SHUICHI

ChemSusChem (Wiley-VCH)  1 ( 1-2 ) 133-142 2008.02

Research paper (scientific journal), Joint Work, Accepted

Lipase-Catalyzed Synthesis and Properties of Poly(12-hydroxydodecanoate-co- 12-hydroxystearate) Directed Towards Novel Green and Sustainable Elastomer

Hiroki Ebata, Kazunobu Toshima, MATSUMURA SHUICHI

Macromolecular Bioscience (Wiley-VCH)  8 ( 1 ) 38-45 2008.01

Research paper (scientific journal), Joint Work, Accepted

Target selective degradation of prooteins by light-activated 2-phenylquinoline-estradiol hybrid

Akane Suzuki, Kana Tsumura, Takeo Tsuzuki, MATSUMURA SHUICHI, Kazunobu Toshima

Chemical Communications (RSC Publishing)  41   4260-4262 2007.11

Research paper (scientific journal), Joint Work, Accepted

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a designed 2-phenylquinoline-estradiol hybrid effectively and selectively degraded the target transcription factor, human estrogen receptor-alpha, which has a high affinity with the estradiol moiety, under long-wavelength UV photo-irradiation, without additives and under neutral conditions.

Target-selective degradation of oligosaccharides by a light-activated small-molecule-lectin hybrid

Maiko Ishii, MATSUMURA SHUICHI, Kazunobu Toshima

Angewandte Chemie, International Edition (Wiley-VCH)  46   8396-8399 2007.10

Research paper (scientific journal), Joint Work

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An innovative method for target-selective degradation of oligosaccharides induced by a light-activated hybrid molecule consisting of anthraquinone and lectin has been developed. The reaction takes place under neutral conditions, and no additives are required.

Toward the total synthesis of vineomycin B2: application of an efficient glycosylation methodology using 2,3-unsaturated sugards

Kaname Sasaki, MATSUMURA SHUICHI, Kazunobu Toshima

Tetrahedron Letters (Elsevier)  48 ( 39 ) 6982-6986 2007.09

Research paper (scientific journal), Joint Work, Accepted

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The application of an efficient glycosylation methodology using 2,3-unsaturated sugards to synthesize critical precursors required for the total synthesis of an antibiotic, Vineomycin B2, was demonstrated.

Sulfated zirconia (SO4/ZrO2) as a reusable solid acid catalyst for the Mannich-type reaction between ketene silyl acetals and aldimines

Sainan Wang, MATSUMURA SHUICHI, Kazunobu Toshima

Tetrahedron Letters (Elsevier)  48 ( 37 ) 6449-6452 2007.09

Research paper (scientific journal), Joint Work, Accepted

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Sulfated zirconia (SO4/ZrO2) catalyzed Mannich-type reaction of ketene silyl acetals and aldimines proceeded smoothly at room temperature to afford b-amino esters in good to high yields. In addition, the heterogeneous solid acid catalyst SO4/ZrO2 was easily recovered from the reaction mixture and then reused without significant loss of effectiveness.

Aryl C-glycosylation using an ionic liquid containing a protic acid

Chigusa Yamada, Kaname Sasaki, MATSUMURA SHUICHI, Kazunobu Toshima

Tetrahedron Letters (Elsevier)  48 ( 24 ) 4223-4227 2007.04

Research paper (scientific journal), Joint Work, Accepted

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Aryl C-glycosylation of several glycosyl donors, including unprotected sugars, with phenol and naphthol derivatives in an ionic liquid containing a protic acid proceeded effectively and stereoselectively to give the corresponding aryl C-glycosides in good to high yields. Because the ionic liquid was nonvolatile, the reaction could be carried out under reduced pressure; in addition, the ionic liquid could be reused without loss of effectivelness. The features contribute to the significant advantages of this novel aryl C-glycosylation reaction.

An efficient glycosidation method using 2,3-unsaturated glycosyl donors

Kaname Sasaki, MATSUMURA SHUICHI, Kazunobu Toshima

Tetrahedron Letters (Elsevier)  47   9039-9043 2006.11

Research paper (scientific journal), Joint Work, Accepted

Synthesis of hexopyranosyl acetates and 2,3-disubstituted tetrahydropyrans via chemoselective hydrogenation of hex-2-enopyranosyl acetates

MATSUMURA SHUICHIKaname Sasaki, Takayuki Wakamatsu, Kazunobu Toshima

Tetrahedron Letters (Elsevier)  47   8271-8274 2006.10

Research paper (scientific journal), Single Work, Accepted

The use of organophotoacids for deprotection reactions in organic synthesis

MATSUMURA SHUICHIYuichi Nishikubo, Shinya Kanzaki, Kazunobu Toshima

Tetrahedron Letters (Elsevier)  47 ( 46 ) 8125-8128 2006.09

Research paper (scientific journal), Joint Work

Molecular design, chemical synthesis, and evaluation of novel anthracene derivatives as a new fammily of protein photocleavers

Masashi Hasegawa, Akane suzuki,MATSUMURA SHUICHI, Kazunobu Toshima

Science and Technology of Advanced Materials (Elsevier)  7 ( 2 ) 169-174 2006.03

Research paper (scientific journal), Joint Work, Accepted

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The newly designed and synthesized artificial anthracene derivatives possessing a deoxyamino sugar effectively and randomly cleaved proteins, such as bovine serum albumin (BSA) and hen egg lysozyme (Lyso), during photoirradiation using a long wavelength UV light (365 nm) without any further additives. Furthermore, it was found that the cleaving ability of anthracene could be improved by the attachment of a suitable substitute into anthracene core skeleton.

One-step syntheses of alkyl glycosides and alkyl-substituted DNA oligomers by chemoselective glycosidations using DNA bases

Nishikubo Y, Sasaki K, MATSUMURA SHUICHI, Toshima K

Tetrahedron Letters (Elsevier)  47 ( 7 ) 1041-1045 2006.02

Research paper (scientific journal), Joint Work, Accepted

Deprotection of benzyl ethers using 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) under photoirradiation

MATSUMURA SHUICHIMohammad Abdur Rahim, Kazunobu Toshima

Tetrahedron Letters (Elsevier)  46   7307-7309 2005.09

Research paper (scientific journal), Joint Work, Accepted

Anthraquinone derivatives as a new family of protein photocleaves

MATSUMURA SHUICHIA. Suzuki, M. Hasegawa, M. Ishii, K. Toshima

Bioorganic & Medicinal Chemistry Letters 15   4624-4627 2005.08

Research paper (scientific journal), Single Work, Accepted

Molecular design, chemical synthesis, and evaluation of cytosine-carbohydrate hybrids for selective recognition of a single guanine bulged duplex DNA

MATSUMURA SHUICHI, Yusuke Idutsu, Ayaka Sasaki, Kazunobu Toshima

Bioorganic & Medicinal Chemistry Letters 15   4332-4335 2005.08

Research paper (scientific journal), Joint Work, Accepted