The chemistry of the pyrido[4,3-b]carbazoles part 15 the synthesis of unsymmetrically 1,4-disubstituted carbazoles and their use in the synthesis of 6H-Pyrido-[4,3-b]carbazoles
摘要:
DOI:
10.1016/s0040-4020(01)88387-3
作为产物:
描述:
3-溴丙酮酸乙酯 、 甲氧基胺盐酸盐 在
乙醇 、 乙酸乙酯 、 碳酸氢钠 、 氯化钠 、 magnesium sulfate 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以gave 36.9 g (165 mmol) of ethyl 2-methoxyimino-3-bromopropionate as a light yellow oily matter的产率得到ethyl 3-bromo-2-(methoxyimino)propanoate
参考文献:
名称:
Substituted pyrazole derivatives, production process thereof, and herbicide compositions containing the derivatives
Novel substituted pyrazole derivative, process for producing the same, and herbicidal composition containing the same
申请人:Hirohara Yoji
公开号:US20050014649A1
公开(公告)日:2005-01-20
Substituted pyrazole compounds of the formula (1). The compounds are synthesized from a pyrazole derivative and a haloalkyleneoxime ester derivative, and have excellent herbicidal effects. Herbicide compositions containing the substituted pyrazole derivatives or hydrazide derivatives thereof as active ingredients possess wide herbicidal spectra, work sufficiently in small dosages, and are sufficiently safe for certain important crops.
TRIAZINE DERIVATIVE AND PHARMACEUTICAL COMPOSITION HAVING AN ANALGESIC ACTIVITY COMPRISING THE SAME
申请人:Kai Hiroyuki
公开号:US20130172317A1
公开(公告)日:2013-07-04
The present invention provides novel compounds having a P2X
3
and/or P2X
2/3
receptor antagonistic effect.
A pharmaceutical composition having an analgesic effect or an improving effect of urination disorder comprising a compound of the formula (I):
wherein
R
h
and R
j
are taken together to form a bond; R
a
and R
b
and/or R
d
and R
e
are taken together to form oxo or the like; R
c
is hydrogen, substituted or unsubstituted alkyl or the like;
R
f
is —(CR
4a
R
4b
)
n
—R
2
; R
4a
and R
4b
are hydrogen, substituted or unsubstituted alkyl or the like; R
2
is substituted or unsubstituted cycloalkyl or the like; n is an integer of 1 to 4; —R
g
is —X—R
3
; —X— is —O—, —S— or the like; R
3
is substituted or unsubstituted cycloalkyl or the like,
or its pharmaceutically acceptable salt or a solvate thereof.