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51

Thio-analogues of 6-Substituted 1, 3-Dimethyl-7-azalumazine (Fervenulin) and 7-Substituted 1, 3-Dimethyl-6-azalumazine (Isofervenulin)

YONEDA, FUMIO, SAKUMA, YOSHIHARU, UENO, MICHIKO, NISHIGAKI, SADAO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1973

File:

PDF, 595 KB

1973

52

Dimethylamination and Nitrosation of Pyrimidines with N-Nitrosodimethylamine

YONEDA, FUMIO, SENGA, KEITARO, NISHIGAKI, SADAO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1973

Language:

english

File:

PDF, 616 KB

english, 1973

53

Synthetic antibacterials. V. 7-Substituted 1-ethyl-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acids.

NISHIGAKI, SADAO, ICHIBA, MISUZU, FUKAZAWA, SHINOBU, KANAHORI, MICHIKO, SHINOMURA, KAZUKO, YONEDA, FUMIO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1975

File:

PDF, 727 KB

1975

54

Nitrosative cyclization of 1,3-dimethyl-6-(.ALPHA.-methylalkylidenehydrazino)uracils by means of N-nitrosodimethylamine-phosphorus oxychloride mixture. A new route to 2-vinyl-.UPSILON.-triazolo(4,5-d)pyrimidines.

SENGA, KEITARO, KANAMORI, YUKAKO, NISHIGAKI, SADAO, YONEDA, FUMIO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1976

File:

PDF, 584 KB

1976

55

Conversion of 6-benzylidenehydrazino-1,3-dimethyluracils into N4-benzylideneamino-1,3-dimethylcytosines.

NISHIGAKI, SADAO, KANAMORI, YUKAKO, SATO, JUNKO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1978

File:

PDF, 451 KB

1978

56

Synthetic antibacterials. VII. N-(1,8-naphthyridin-7-yl)methylenamine derivatives.

NISHIGAKI, SADAO, MIZUSHIMA, NORIKO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1977

File:

PDF, 526 KB

1977

57

Oxidative cyclization of 6-amino-5-benzylideneamino-1,3-dimethyluracils with thionyl chloride. A convenient synthesis of 8-substituted theophyllines.

SENGA, KEITARO, SHIMIZU, KAYOKO, NISHIGAKI, SADAO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1977

File:

PDF, 432 KB

1977

58

Synthesis of xanthines by dehydrogenative cyclization of 6-amino-5-benzylideneaminouracils with diethyl azodicarboxylate.

YONEDA, FUMIO, HIGUCHI, MASATSUGU, MORI, KENYA, SENGA, KEITARO, KANAMORI, YUKAKO, SHIMIZU, KAYOKO, NISHIGAKI, SADAO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1978

File:

PDF, 774 KB

1978

59

Synthesis of [1,2,3]thiadiazolo[5,4-d]pyrimidines.

NISHIGAKI, SADAO, SHIMIZU, KAYOKO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1977

File:

PDF, 342 KB

1977

60

The synthesis and reactions of some isoxazolo[3,4-d]pyrimidines.

NISHIGAKI, SADAO, KANAMORI, YUKAKO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1978

File:

PDF, 550 KB

1978

61

Synthesis and properties of 1,3-dimethyl-6-azalumazines (Isofervenulins).

YONEDA, FUMIO, NAGAMATSU, TOMOHISA, OGIWARA, KAZUKO, KANAHORI, MICHIKO, NISHIGAKI, SADAO, TAYLOR, EDWARD C.

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1978

File:

PDF, 672 KB

1978

62

Oxidative cyclization of 6-substituted amino-5-benzylideneamino-1,3-dimethyluracils to 9-substituted 8-aryltheophyllines with thionyl chloride.

SENGA, KEITARO, KANAMORI, YUKAKO, NISHIGAKI, SADAO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1978

File:

PDF, 353 KB

1978

63

A new, facile synthesis of oxazolo[5,4-d]pyrimidines and their conversion into thiazolo[5,4-d]pyrimidines.

SENGA, KEITARO, SATO, JUNKO, NISHIGAKI, SADAO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1978

File:

PDF, 571 KB

1978

64

Synthesis of 1,3-dimethylpyrimido[4,5-b]quinoline-2,4(1H,3H)-diones (1,3-dimethyl-5-deazaalloxazines) and related compounds via the intramolecular cycloaddition of azahexatrienes.

NISHIGAKI, SADAO, SATO, JUNKO, SHIMIZU, KIYOKO, FURUKAWA, KIYOKO, SENGA, KEITARO, YONEDA, FUMIO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1980

File:

PDF, 718 KB

1980

65

Synthesis of 9-substituted 8-phenyltheophyllines.

NISHIGAKI, SADAO, SATO, JUNKO, SHIMIZU, KAYOKO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1980

File:

PDF, 498 KB

1980

66

A Convenient Chlorination of Pyrimidines with Thionyl Chloride

NISHIGAKI, SADAO, SENGA, KEITARO, YONEDA, FUMIO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 369 KB

1970

67

A Novel Synthesis of 6-Deoxytheophyllines and 6-Deoxy-7-deazatheophyllines

SENGA, KEITARO, NISHIGAKI, SADAO, HIGUCHI, MASATSUGU, YONEDA, FUMIO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

File:

PDF, 690 KB

1972

68

Synthetic antibacterials. VI. 7-(1-Substituted 2-(5-nitro-2-furyl)vinyl)-1,8-naphthyridines.

NISHIGAKI, SADAO, MIZUSHIMA, NORIKO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1976

File:

PDF, 510 KB

1976

69

Syntheses of 9-deazatheophyllines and 6-deoxy-9-deazatheophyllines.

NISHIGAKI, SADAO, KANAMORI, YUKAKO, SENGA, KEITARO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1980

File:

PDF, 571 KB

1980

70

The crystal structure of ftorafur.

Nakai, Yoshinobu, Yamamoto, Keiji, Terada, Katsuhide, Uchida, Takeshi, Shimizu, Nobuyuki, Nishigaki, Sadao

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1982

File:

PDF, 384 KB

1982

71

Preparation of Sulfamines by Fusion Method

Takahashi, Torizo, Nishigaki, Sadao

Journal:

YAKUGAKU ZASSHI

Year:

1950

File:

PDF, 655 KB

1950

72

Syntheses of Heterocyclic Compounds of Nitrogen LIX

Nishigaki, Sadao, Takahashi, Torizo

Journal:

YAKUGAKU ZASSHI

Year:

1951

File:

PDF, 714 KB

1951

73

Syntheses of Heterocyclic Compounds of Nitrogen. LXXXVI

Takahashi, Torizo, Nishigaki, Sadao, Sakamoto, Sadabumi

Journal:

YAKUGAKU ZASSHI

Year:

1953

File:

PDF, 543 KB

1953

74

Syntheses of Heterocyclic Compounds of Nitrogen. LXXXVII

Takahashi, Torizo, Nishigaki, Sadao

Journal:

YAKUGAKU ZASSHI

Year:

1953

File:

PDF, 775 KB

1953

75

Preparation of Sulfanilamides by the Fusion Method

Takahashi, Torizo, Nishigaki, Sadao

Journal:

YAKUGAKU ZASSHI

Year:

1949

File:

PDF, 341 KB

1949

76

Sulfur-containing Pyridine Derivatives. XXIX

Takahashi, Torizo, Nishigaki, Sadao, Murakami, Masaichi

Journal:

YAKUGAKU ZASSHI

Year:

1948

File:

PDF, 345 KB

1948

77

Syntheses of Heterocyclic Compounds of Nitrogen LIV

Nishigaki, Sadao, Takahashi, Torizo

Journal:

YAKUGAKU ZASSHI

Year:

1951

File:

PDF, 578 KB

1951

78

Syntheses of Heterocyclic Compounds of Nitrogen. LXXXV

Takahashi, Torizo, Nishigaki, Sadao

Journal:

YAKUGAKU ZASSHI

Year:

1953

File:

PDF, 971 KB

1953

79

Syntheses of Heterocyclic Compounds of Nitrogen. LX

Nishigaki, Sadao, Takahashi, Torizo

Journal:

YAKUGAKU ZASSHI

Year:

1951

File:

PDF, 526 KB

1951

80

Identification of molecular species of precipitate formed in the admixtures of bromhexine hydrochloride injection.

MINAMI, TAKEO, KANAZAWA, HASHIME, SENGA, KEITARO, NISHIGAKI, SADAO

Journal:

Japanese Journal of Hospital Pharmacy

Year:

1989

Language:

english

File:

PDF, 2.86 MB

english, 1989

81

Identification of molecular species of precipitate formed in the admixtures of bromhexine hydrochloride injection.

MINAMI, TAKEO, KANAZAWA, HASHIME, SENGA, KEITARO, NISHIGAKI, SADAO

Journal:

Japanese Journal of Hospital Pharmacy

Year:

1989

File:

PDF, 2.86 MB

1989