Preparation of Alkyl-Substituted Indoles in the Benzene Portion. Part 9. Synthesis of (1aS,8bS)-1-tert-Butyloxycarbonyl-8-formyl-1,1a,2,8b-tetrahydroazirino(2',3':3,4)pyrrolo(1,2-a)indole. Model Study for the Enantiospecific Synthesis of Aziridinomitosenes.
[EN] COVALENT RAS INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE RAS COVALENTS ET LEURS UTILISATIONS
申请人:REVOLUTION MEDICINES INC
公开号:WO2021108683A1
公开(公告)日:2021-06-03
The disclosure features compounds, or pharmaceutically acceptable salts thereof, alone and in combination with other therapeutic agents, pharmaceutical compositions, and protein conjugates thereof, capable of modulating biological processes including Ras, and their uses in the treatment of cancers.
Explorations on the Asymmetric Total Synthesis of Isoschizogamine
作者:Jianguang Zhou、Nabi A. Magomedov
DOI:10.1021/jo070144x
日期:2007.5.1
Two approaches to the synthesis of isoschizogamine were reported. Both routes utilized an efficient aza-Claisen rearrangement to establish the absolute stereochemistry of the all-carbon quaternary center in the naturalproduct. In the first approach, a highly diastereoselective (10:1) hetero-Diels−Alderreaction was utilized to reach a densely functionalized tetrahydroquinoline derivative as an advanced
A short synthetic route to stereoselective access to C-glycosyl-aminoethyl sulfide derivatives has been developed through the reaction of tributhyltin derivatives of glycals with aziridinecarboaldehyde and the regioselective ring opening of a chiral aziridine with thiophenol. The absolute configurations of the resulting diastereoisomers were determined by 1H NMR spectroscopy.
通过甘醛的三丁锡衍生物与氮丙啶醛的反应以及手性氮丙啶与苯硫酚的区域选择性开环,开发了一种立体选择性获得C-糖基氨基乙基硫醚衍生物的短合成路线。所得非对映异构体的绝对构型通过 1 H NMR 光谱测定。
Baylis-Hillman reaction of N-trityl aziridine-2-(S)-carboxaldehyde
作者:Sandip K. Nayak、Lambertus Thijs、Binne Zwanenburg
DOI:10.1016/s0040-4039(98)02462-9
日期:1999.1
aziridine-2-(S)-carboxaldehyde 1 undergoes a facile Baylis-Hillman reaction with a variety of activated vinyl compounds in the presence of a catalytic amount of DABCO to furnish the corresponding adducts 2 in good yields. Unexpectedly, acetylation of the adduct 2a derived from methyl acrylate takes place using Ac2O/py with concomitant allylic transposition. The predominant Z-isomer 4 gives a Sn2 type displacement
在催化量的DABCO存在下,N-三苯甲基氮丙啶-2-(S)-甲醛1与各种活化的乙烯基化合物进行容易的Baylis-Hillman反应,以高收率提供相应的加合物2。出乎意料的是,衍生自丙烯酸甲酯的加合物2a的乙酰化是使用Ac 2 O / py和伴随的烯丙基转位进行的。与在相似系统中报道的Sn2'型位移相反,主要的Z-异构体4给出了具有各种亲核试剂的乙酸盐的Sn2型位移。
Synthesis of 3,3,3-trifluoroprop-1-enyl compounds from some enolizable aldehydes
2,2,2-Trifluoroethyldiphenylphosphine oxide [Ph2P(O)CH2CF3] (2) is known to give no Homer reaction product with enolizable aldehydes. We found, however, that some enolizable aldehydes such as N-Boc-pyrrolidine-2-aldehyde (9) gave the expected 3,3,3trifluoroprop-1-enyl compounds by reaction with 2. The products could be further transformed to some 2,2,2-trifluoroethyl-substituted nitrogen-containing heterocycles by using radical cyclization or Heck reaction. (C) 2004 Elsevier Ltd. All rights reserved.