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au.\*:("NIITSUMA S")

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STUDIES ON PYRIMIDINE DERIVATIVES. XIII: REACTION OF 4-ALKOXY-PYRIMIDINE 1-OXIDES WITH PHENYL ISOCYANATE AND PHENYL ISOTHIOCYANATEYAMANAKA H; NIITSUMA S; SAKAMOTO T et al.1979; CHEM. PHARM. BULL.; JPN; DA. 1979; VOL. 27; NO 11; PP. 2642-2646; BIBL. 12 REF.Article

STUDIES ON PYRIMIDINE DERIVATIVES. XII: REACTION OF 4,6-DISUBSTITUTED PYRIMIDINE N-OXIDES WITH DIMETHYL ACETYLENEDICARBOXYLATEYAMANAKA H; NIITSUMA S; SAKAMOTO T et al.1979; CHEM. PHARM. BULL.; JPN; DA. 1979; VOL. 27; NO 10; PP. 2291-2294; BIBL. 10 REF.Article

1,3-DIPOLAR CYCLOADDITION OF 4-ALKOXY-6-METHYLPYRIMIDINE N-OXIDES.YAMANAKA H; NIITSUMA S; SAKAMOTO T et al.1976; HETEROCYCLES; JAP.; DA. 1976; VOL. 5; NO SPEC.; PP. 255-260; BIBL. 8 REF.Article

STUDIES ON PYRIMIDINE DERIVATIVES. XIV: ON THE STRUCTURAL DETERMINATION OF PYRIMIDINE N-OXIDESSAKAMOTO T; NIITSUMA S; MIZUGAKI M et al.1979; CHEM. PHARM. BULL.; JPN; DA. 1979; VOL. 27; NO 11; PP. 2653-2660; BIBL. 16 REF.Article

STUDIES ON PYRIMIDINE DERIVATIVES. I. REACTION OF PYRIMIDINE N-OXIDES WITH ENAMINESYAMANAKA H; NIITSUMA S; BANNAI Y et al.1975; CHEM. PHARM. BULL.; JAP.; DA. 1975; VOL. 23; NO 11; PP. 2591-2597; BIBL. 9 REF.Article

STUDIES ON PYRIMIDINE DERIVATIVES. XXIII: SYNTHESIS OF ACYLMETHYLPYRIMIDINES AND RELATED COMPOUNDS VIA IMIDOYL-SUBSTITUTED OXOSULFONIUM YLIDESYAMANAKA H; KONNO S; SAKAMOTO T et al.1981; CHEM. PHARM. BULL.; ISSN 0009-2363; JPN; DA. 1981; VOL. 29; NO 10; PP. 2837-2843; BIBL. 17 REF.Article

STUDIES ON PYRIMIDINE DERIVATIVES. XX: SYNTHETIC UTILITY OF HYDROXYMETHYLPYRIMIDINES AND RELATED COMPOUNDSSAKAMOTO T; TANJI KI; NIITSUMA S et al.1980; CHEM. PHARM. BULL.; ISSN 0009-2363; JPN; DA. 1980; VOL. 28; NO 11; PP. 3362-3368; BIBL. 5 REF.Article

Pyridine N-oxides : syntheses, structures, and chemical propertiesYAMANAKA, H; SAKAMOTO, T; NIITSUMA, S et al.Heterocycles (Sendai). 1990, Vol 31, Num 5, pp 923-967, issn 0385-5414, 45 p.Article

Studies on pyrimidine derivatives. XL: Ring transformation of 4-alkoxypyrimidine 1-oxides by reaction with diketeneYAMANAKA, H; NIITSUMA, S; SAKAI, M et al.Chemical and pharmaceutical bulletin. 1988, Vol 36, Num 1, pp 168-171, issn 0009-2363Article

Synthesis of 3-deazaoxanosines, C-nucleoside isosteres of oxanosineNIITSUMA, S; KATO, K; TAKITA, T et al.Tetrahedron letters. 1985, Vol 26, Num 47, pp 5785-5786, issn 0040-4039Article

Studies on the total synthesis of oxetanocin. I: The first synthesis of a nucleoside having oxetanosyl-N-glycosideNIITSUMA, S; ICHIKAWA, Y; KATO, K et al.Tetrahedron letters. 1987, Vol 28, Num 34, pp 3967-3970, issn 0040-4039Article

Studies on the total synthesis of oxetanocin. II: Total synthesis of oxetanocinNIITSUMA, S; ICHIKAWA, Y; KATO, K et al.Tetrahedron letters. 1987, Vol 28, Num 40, pp 4713-4714, issn 0040-4039Article

Preparation of trans-3-(hydroxymethyl)-2-vinyloxetane via allyloxycarbanion-mediated carbon-carbon bond formation in allyl glycidyl etherICHIKAWA, Y.-I; NIITSUMA, S; KATO, K et al.Journal of the Chemical Society. Chemical communications. 1988, Num 9, pp 625-626, issn 0022-4936Article

Medium-ring ketone synthesis. Total syntheses of (±)-isocaryophyllene and (±)-caryophylleneOHTSUKA, Y; NIITSUMA, S; TADOKORO, H et al.Journal of organic chemistry. 1984, Vol 49, Num 13, pp 2326-2332, issn 0022-3263Article

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