2014 | 2013 | 2012 | 2011 | 2010 | 2009~2005 | 2004~2000 | 1999~1995 | 1994~1988 |
Synthetic studies of the Lichen macrolide lepranthin. Stereoselective synthesis
of the diolide framework based on regioselective epoxide-opening reactions.
Takada, H.; Nagumo, S.; Yasui, E.; Mizukami, M.; Miyashita, M.
Chem. Pharm. Bull. 2011, 59(4), 525-527.
Friedel-Crafts reaction of vinylaziridine linked to an ester group.
Takada, H.; Yasui, E.; Sahara, Y.; Chinen, Y.;
Tanaka, H.; Morita, Y.; Kobiki, C.; Narisawa, D.; Mizukami, M.; Miyashita, M.; Nagumo,
S.
Heterocycles, 2011, 83(3), 555-570.
Synthetic studies of lepranthin, a lichen-produced
dimeric macrolide. Stereoselective synthesis of a seco-acid based on
stereospecific epoxide-opening reactions.
Takada, H.; Nagumo, S.; Yasui, E.; Mizukami, M.;
Miyashita, M.
Heterocycles, 2011, 83(2), 293-298.
The synthetic studies of novel alkaloid, TAN1251 A.
Nagumo, S.; Akutsu, N.; Yamazaki, C.; Kawahara, N.;
Nishida, A.
Tennen Yuki Kagobutsu Toronkai Koen Yoshishu 1998, 40th, 595-600.
Alkylation of 4-hydroxyproline ester derivatives. Diastereoselectivity
guided by the anomeric effect and π-interaction.
Nagumo, S.; Mizukami, M.; Akutsu, N.; Nishida, A.;
Kawahara, N.
Tetrahedron Lett. 1999, 40(16), 3209-3212.
Lactonization of methyl 4-aryl-5-(tosyloxy)hexanoates via a phenonium ion.
Nagumo, S.; Hisano, T.; Kakimoto, Y.; Kawahara, N.; Ono, M.; Furukawa,
T.; Takeda, S.; Akita, H.
Tetrahedron Lett. 1998, 39(44), 8109-8112.
Total synthesis of (±)-TAN 1251A.
Nagumo, S.; Nishida, A.; Yamazaki, C.; Murashige, K.;
Nawahara, N.
Tetrahedron Lett. 1998, 39(25), 4493-4496.
Novel lactonization induced by the phenonium ion.
Nagumo, S.; Furukawa, T.; Ono, M.; Akita, H.
Tetrahedron Lett. 1997, 38(16), 2849-2852.
A synthesis of (2R,4'R,8'R)-α-tocopherol (vitamin E) side chain.
Chen, C. Y.; Nagumo, S.;
Chem. Pharm. Bull. 1996, 44(11), 2153-2156.
Enzymic hydrolysis of meso(syn-syn)-1,3,5-triacetoxy-2,4-dimethylpentane and acetylation of meso(syn-syn)-3-benzyloxy-2,4-dimethylpentane-1,5-diol by lipase.
Nagumo, S.; Arai, T.; Akita, H.
Chem. Pharm. Bull. 1996, 44(7), 1391-1394.
A formal total synthesis of xanthorrhizol based on nucleophilic opening
of vinyloxirane by arylcopper reagent.
Nagumo, S.; Irie, S.; Hayashi, K.; Akita, H.
Heterocycles 1996, 43(6), 1175-1178.
Reaction of methyl 4,5-epoxy-(2E)-pentenoate with arylcopper reagents.
Nagumo, S.; Irie, S.;
Chem. Pharm. Bull. 1996, 44(4), 675-80.
The reaction of methyl (E)-4,5-epoxypent-2-enoate with arylcopper: the unique role of boron trifluoride
in determining regioselectivity.
Nagumo, S.; Irie, S.; Akita, H.
Chem. Comm. 1995, (19), 2001-2.
Formal total syntheses of (-)-oudemansins A, B and X based on a lipase-catalyzed
hydrolysis of an acetate.
J. Chem. Soc. Perkin Trans. 1: Org. bioorg. Chem. 1995, (17), 2159-64.
Total synthesis of (±)-, (-)-, and (+)-oudemansin X.
Umezawa, I.; Nozawa, M.; Nagumo, S.; Akita, H.
Chem. Pharm. Bull. 1995, 43(7), 1111-18.
A highly stereoselective synthesis of chiral synthon based on enzymic function
and its application to the synthesis of natural products.
Chen, C. Y.; Nagumo, S.; Umezawa, I.; Ono, M.;
Tennen Yuki Kagobutsu Toronkai Koen Yoshishu 1994, 36th, 549-56.
Lipase catalyzed resolution of (±)-2-substituted 1-propanol derivatives
possessing an aromatic ring.
Akita, H.; Nozawa, M.; Umezawa, I.; Nagumo, S.
Biocatalysis 1994, 9(1-4), 79-87.
Formal synthesis of N-trifluoroacetyl-L-acosamine and N-trifluoroacetyl-L-daunosamine
from an achiral precursor, methyl sorbate.
Nagumo, S.; Umezawa, I.; Akiyama, J.; Akita, H.
Chem. Pharm. Bull. 1995, 43(1), 171-3.
Catalytic properties of carbonyl reductase from rabbit kidney for acetohexamide
and its analogs.
Imamura, Y.; Higuchi, T.; Otagiri, M.; Nagumo, S.;
Akita, H.
Bioorg. Chem. 1994, 22(4), 387-94.
Synthesis of ozonolysis products of myxothiazol.
Akita, H.; Nozawa, M.; Nagumo, S.
Chem. Pharm. Bull. 1994, 42(6), 1208-12.
Catalytic properties of carbonyl reductase from rabbit liver for analogs
of acetohexamide and 4-acetylpyridine.
Imamura, Y.; Koga, T.; Higuchi, T.; Otagiri, M.; Sugino, E.; Hibino, S.;
Nagumo, S.; Akita, H.
Biochemistry and Molecular Biology International 1994, 33(5), 893-9.
A highly stereoselective synthesis of the versatile chiral synthons possessing
two stereogenic centers, the formal total syntheses of (-)-oudemansins
A, B, and X.
Tetrahedron: Asymmetry 1994, 5(7), 1207-10.
Novel ring cleavage based on intermolecular aldol condensation.
Nagumo, S.; Matsukuma, A.; Suemune, H.;
Tetrahedron 1993, 49(46), 10501-10.
Total synthesis of (-)-oudemansin X based on enzymic resolution using immobilized
lipase.
Akita, H.; Umezawa, I.; Nozawa, M.; Nagumo, S.
Tetrahedron: Asymmetry 1993, 4(5), 757-60.
Synthesis of (R)-(-)-phoracantholide I based on stereocontrolled cleavage of internal
acetal.
Nagumo, S.; Suemune, H.; Sakai, K.
Tetrahedron 1992, 48(40), 8667-76.
Drastic ring transformation reactions of fused bicyclic rings to bridged bicyclic rings.
Yamamoto, T.; Eki, T.; Nagumo, S.; Suemune, H.;
Sakai, K.
Tetrahedron 1992, 48(22), 4517-24.
Preparation of chiral straight-chain compounds with syndiotactic methyl function.
Matsukuma, A.; Nagumo, S.; Suemune, H.;
Tetrahedron Lett. 1991, 32(51), 7559-62.
Synthesis of phoracantholide I based on stereospecific fragmentation reactions.
Nagumo, S.; Suemune, H.; Sakai, K.
Tetrahedron Lett. 1991, 32(40), 5585-8.
Novel skeletal transformation of bicyclo[3.3.0]octanones to bicyclo[3.2.1]octenes.
Yamamoto, T.; Eki, T.; Nagumo, S.; Suemune, H.;
Sakai, K.
Tetrahedron Lett. 1991, 32(4), 515-16.
Stereocontrolled synthesis of (±)-acorenone B based on new ring conversion.
Nagumo, S.; Suemune, H.; Sakai, K.
Chem. Comm. 1990, (24), 1778-9.
Ring cleavage reaction based on intermolecular aldol condensation.
Nagumo, S.; Matsukuma, A.; Inoue, F.; Yamamoto, T.;
Suemune, H.;
Chem. Comm. 1990, (21), 1538-9.
Drastic conversion of bicyclo[m.n.0]alkane rings to spirocyclic skeletons.
Nagumo, S.; Suemune, H.; Sakai, K.
Tetrahedron Lett. 1988, 29(52), 6927-30.
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