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289686-98-2

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289686-98-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 289686-98-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,6,8 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 289686-98:
(8*2)+(7*8)+(6*9)+(5*6)+(4*8)+(3*6)+(2*9)+(1*8)=232
232 % 10 = 2
So 289686-98-2 is a valid CAS Registry Number.

289686-98-2Downstream Products

289686-98-2Relevant articles and documents

The design and synthesis of water-soluble analogues of CB30865, a quinazolin-4-one-based antitumor agent

Bavetsias,Skelton,Yafai,Mitchell,Wilson,Allan,Jackman

, p. 3692 - 3702 (2007/10/03)

4-[N-[7-Bromo-2-methyl-4-oxo-3,4-dihydroquinazolin-6-ylmethyl] -N-(prop-2-ynyl)amino]-N-(3-pyridylmethyl)benzamide (CB30865) is a quinazolin-4-one antitumor agent whose high growthinhibitory activity (W1L2 IC50 = 2.8 ± 0.50 nM) is believed to have a folate-independent locus of action. In addition, CB30865 represents a class of compounds with unique biochemical characteristics such as a delayed, non-phase specific, cell-cycle arrest. The low aqueous solubility of CB30865 prompted a search for more water-soluble analogues for in vivo evaluation of this class of compounds. It was thought that aqueous solubility could be increased by the introduction of amino functionalities at the 2-position of the quinazolin-4-one ring. A variety of compounds (5a-j, 31a-c, 32, and 33) were synthesized in a linear fashion starting from 3-chloro-4-methylaniline. Most of these compounds (e.g., 5a, 5b, 5g) were significantly more water-soluble than CB30865 (636 μM for 5a at pH 6 and 992 μM for 5g at pH 6). In addition, some of them were up to 6-fold more cytotoxic than CB30865 (e.g., for 5a, W1L2 IC50 = 0.49 ± 0.24 nM) and retained its novel biochemical characteristics.

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