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971.
972.
M Satoh K Munakata H Takeuchi O Yoshida S Takebe K Kobashi 《Chemical & pharmaceutical bulletin》1991,39(4):894-896
By using our new infection stone model of a rat, we evaluated the effect of a novel urease inhibitor, N-(pivaloyl)glycinohydroxamic acid (P-GHA), on the formation of an infection bladder stone. The oral dosing of P-GHA significantly inhibited the elevation of the urinary ammonia level of rats having the urinary tract infection with Proteus mirabilis. A short term regimen (7 d, 730 +/- 38 mg/kg) with P-GHA significantly inhibited the development of the infection bladder stone. Furthermore, a long term combination regimen (11 d) of P-GHA and aminobenzylpenicillin markedly inhibited the development of the infection bladder stone, and also caused a very slight renal impairment to the rats tested in contrast with the method of Vermeulen et al. Our infection stone model in rats, therefore, seems to be useful for the evaluation of therapeutic agents in long term examinations. 相似文献
973.
Masami Sawada Masaharu Ichihara Takashi Ando Yasuhide Yukawa Yuho Tsuno 《Tetrahedron letters》1981,22(47):4733-4736
A new set of apparent σ values was evaluated for the aza substitution of all positions in pyridyl and quinolyl groups on the basis of the alkaline hydrolysis of aryl benzoates. The enhanced reactivities of 4-pyridyloxy- and 4-quinolyloxy- groups were first estimated quantitatively. 相似文献
974.
A single crystal of CeSi1.86 was obtained and the electrical resistivity and the paramagnetic susceptibility were measured. Both quantitities show Fermi-liquid behavior at low temperatures. Of particular interest is the appreciable anisotropy exhibited by the two quantities, which is tentatively attributed to the crystal field effect. 相似文献
975.
976.
977.
Masaharu Tanabe 《Proceedings of the American Mathematical Society》1999,127(8):2289-2295
We give a bound on the number of nonconstant holomorphic maps between compact Riemann surfaces of genera .
978.
979.
Yoshito Tobe Yasuyoshi Ueda Masaharu Matsumoto Yasuo Sakai Yoshinobu Odaira 《Tetrahedron letters》1982,23(5):537-538
Bicyclo[6.2.2]dodecadienes (), (), and () having two bridgehead double bonds were synthesized by the pyrolysis of the acetate (). 相似文献
980.
Triarylmethanols are effectively dehydroarylated and reacted with some unsaturated compounds by using an appropriate palladium catalyst system such as Pd(OAc)2-P(1-Nap)3 (1-Nap = 1-naphthyl) to give the corresponding arenes and hydroarylation products, respectively, along with diaryl ketones. 相似文献