6893-65-8Relevant articles and documents
Control of Crystallinity and Stereocomplexation of Synthetic Carbohydrate Polymers from d- and l-Xylose
McGuire, Thomas M.,Bowles, Jessica,Deane, Edward,Farrar, Elliot H. E.,Grayson, Matthew N.,Buchard, Antoine
supporting information, p. 4524 - 4528 (2021/01/12)
Manipulating the stereochemistry of polymers is a powerful method to alter their physical properties. Despite the chirality of monosaccharides, reports on the impact of stereochemistry in natural polysaccharides and synthetic carbohydrate polymers remain absent. Herein, we report the cocrystallisation of regio- and stereoregular polyethers derived from d- and l-xylose, leading to enhanced thermal properties compared to the enantiopure polymers. To the best of our knowledge, this is the first example of a stereocomplex between carbohydrate polymers of opposite chirality. In contrast, atactic polymers obtained from a racemic mixture of monomers are amorphous. We also show that the polymer hydroxyl groups are amenable to post-polymerisation functionalization. These strategies afford a family of carbohydrate polyethers, the physical and chemical properties of which can both be controlled, and which opens new possibilities for polysaccharide mimics in biomedical applications or as advanced materials.
Synthesis and biological evaluation of benzo[f]indole-4,9-diones n-linked to carbohydrate chains as new type of antitumor agents
Dias, Flaviana R.F.,Guerra, Fabiana S.,Lima, Fernanda A.,de Castro, Yasmin K.C.,Ferreira, Vitor F.,Campos, Vinícius R.,Fernandes, Patrícia D.,Cunha, Anna C.
, p. 476 - 489 (2021/02/12)
In this work, we report the synthesis of three series of carbohydrate-based benzo[f]indole-4,9-diones and amino-1,4-naphthoquinone derivatives and evaluated their cytotoxic activity against eight human cancer cell lines. Several compounds showed a promising cytotoxic activity toward the tumor cell lines (half maximal inhibitory concentration (IC50) 10.0 μM). The importance of the substitution pattern of the quinone derivatives on the antitumor activity was also discussed. 3-Carboethoxy-2-methyl-benzo[f]indole-4,9-dione derivatives were more cytotoxic than their parent compounds and amino-1,4-naphthoquinones. Unlike clinically useful anticancer agent doxorubicin, the majority of synthesized compounds did not exhibit any lytic effects against erythrocytes or normal human leukocytes.
INTERMEDIATE FOR PREPARING ERIBULIN MESYLATE AND PROCESS FOR PREPARING THE SAME
-
Paragraph 0199-0201, (2020/12/04)
The present invention relates to a process for preparing a compound of formula (6) which is an intermediate for the preparation of eribulin mesylate with high yields and high purity, and an intermediate therefor.
