A trans or cis ethenyl group has been inserted between the α-carbon and the carboxyl group of α-aminoacids by Horner stereoselective olefination of α-aminoaldehydes. Numerous pure cis and trans vinylogous α-aminoacids have been obtained thus and coupled with aminopartners by classical methods. The versatility of the method was illustrated by the preparation of a [trans vinylogous-Gly3]Leu-enkephalin
DIHETEROCYCLIC TRIAZINONE NUCLEOSIDE ANALOGS AND THEIR USE FOR MEDICATION
申请人:Xu Lifeng
公开号:US20210292347A1
公开(公告)日:2021-09-23
This invention relates to novel of formula I that are useful for the treatment, prevention and/or amelioration of human diseases of cancers.
This invention also relates with their pharmaceutical compositions, preparative General Methods and applications.
TRICYCLIC PYRIDONE COMPOUNDS AS JAK2 V617F INHIBITORS
申请人:Incyte Corporation
公开号:US20220002299A1
公开(公告)日:2022-01-06
The present application provides tricyclic pyridone compounds that modulate the activity of the V617F variant of JAK2, which are useful in the treatment of various diseases, including cancer.
Cycloaddition Reactions of (Diethylphosphono)ketenes
作者:Jiro Motoyoshiya、Kozo Hirata
DOI:10.1246/cl.1988.211
日期:1988.2.5
Methyl- and chloro(diethylphosphono)ketenes were found to add to cyclopentadiene or imines in unusual manner in the certain cases. Some chemical conversions and the Horner–Wittig reaction of the cycloadducts were examined.
7-AMINO ALKYLIDENYL-HETEROCYCLIC QUINOLONES AND NAPHTHYRIDONES
申请人:Davis Benjamin
公开号:US20090156577A1
公开(公告)日:2009-06-18
The present invention relates to compounds having a structure according to Formula (I)
wherein n, m, z, R, R
2
, R
3
, R
4
, R
5
, R
6
, A, E, X, Y, a and b are as defined above; or an optical isomer, diastereomer or enantiomer thereof; a pharmaceutically acceptable salt, hydrate, or prodrug thereof.