4.5‐Dicarbäthoxy‐pyrimidin (3) wird mit wäßrigem Ammoniak in 4.5‐Dicarbamoyl‐pyrimidin (4) übergeführt, das bei trockenem Erhitzen Ammoniak abspaltet und Pyrimidin‐4.5‐dicarbonsäureimid (5) liefert. 5 läßt sich mit Formaldehyd/Morpholin zur N‐Mannichbase 6 aminomethylieren.
The present invention relates to compounds of formula I
wherein
R
1
,
R
2
, and
are defined in the specification
and to pharmaceutically acceptable acid addition salts thereof.
本发明涉及式I的化合物,其中R1,R2和在规范中定义,并且其药学上可接受的酸加合盐。
FICKENTSCHER K.; GUENTHER E., ARCH. PHARM. <APBD-AJ>, 1975, 308, NO 2, 118-121
作者:FICKENTSCHER K.、 GUENTHER E.
DOI:——
日期:——
HERPES VIRUS-BASED COMPOSITIONS AND METHODS OF USE IN THE PRENATAL AND PERINATAL PERIODS
申请人:THE UNIVERSITY OF ROCHESTER
公开号:EP1903873A2
公开(公告)日:2008-04-02
Methods to accelerate the isolation of novel cell strains from pluripotent stem cells and cells obtained thereby
申请人:West D. Michael
公开号:US20080070303A1
公开(公告)日:2008-03-20
This invention generally relates to methods to differentiate pluripotent stem cells, such as embryonic stem, embryonic germ, or embryo-derived cells, to obtain subpopulations of cells from heterogeneous mixtures of cells wherein the subpopulation of cells possess reduced differentiation potential compared to the original pluripotent stem cells and where the subpopulation is capable of being propagated.