cas 24316-19-6, Cephalotaxine | Articles data ｜lookchem

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24316-19-6

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ANALOGUES AND DERIVATIVES OF CEPHALOTAXINE AND METHODS FOR MAKING AND USING THE COMPOUNDS
Disclosed herein are embodiments of a compound having a Formula I, or a salt, solvate, N-oxide, prodrug, diastereomer or enantiomer thereof. Also disclosed are derivative compounds made from the compound of Formula I. Certain derivative compounds have a Formula V-2, or a salt, solvate, N-oxide, prodrug, diastereomer or enantiomer thereoAlso disclosed are method for making and using the disclosed compounds. Certain disclosed embodiments are useful for treating and/or preventing certain diseases and/or disorders, including proliferation diseases, such as leukemia.
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(2020/09/30)

Novel cephalotaxane derivatives and process for their preparation
The present invention concerns a new general process for asymetric hemisynthesis of harringtonines and their analogs, that are alcalo?ds used in chimiotherapy. This process comprises direct esterification of a natural cephalotaxine with an acylating compound constituted of a side chain precursor which backbone and fonctionalization are entirely preformed.
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(2008/06/13)

Studies in Cephalotaxus Alkaloids. Stereospecific Total Synthesis of Homoharringtonine
The alkaloid ester homoharringtonine (2) was synthesized stereospecifically via the Reformatsky reaction of methyl α-bromoacetate with cephalotaxyl pyruvate (16) obtained by esterification of cephalotaxine with acid chloride derived from 15.The preparations of 2 and its unsaturated derivative 13 are described in detail.Possible explanations of the steric requirements in the esterification of cephalotaxine and of the steric outcome of the Reformatsky reaction leading to 2 and 13 are advanced.
Hiranuma, Sayoko,Shibata, Misako,Hudlicky, Tomas
p. 5321 - 5326
(2007/10/02)

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Chemical Properties

Appearance/Colour :White powder with faint yellow cast
Melting Point: 131-132 °C(Solv: benzene (71-43-2))
Boiling Point: 495.2 °C at 760 mmHg
Flash Point:253.3 °C
Density: 1.38 g/cm³
Storage Temp.:2-8°C
Vapor Pressure: 1.27E-10mmHg at 25°C
Refractive Index: 1.664
PKA: 13.30±0.40(Predicted)
PSA: 51.16000
LogP: 1.73230

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