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236750-62-2

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236750-62-2 Usage

Uses

2-Amino-4,5-bis(2-methoxyethoxy)benzamide is an impurity of Erlotinib (E625008), a EGFR-targeted drug in the treatment of non-small cell lung cancer. EGFR small tyrosine kinase inhibitor that shows most substantial effect on tumor growth inhibition and animal survival.

Check Digit Verification of cas no

The CAS Registry Mumber 236750-62-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,6,7,5 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 236750-62:
(8*2)+(7*3)+(6*6)+(5*7)+(4*5)+(3*0)+(2*6)+(1*2)=142
142 % 10 = 2
So 236750-62-2 is a valid CAS Registry Number.

236750-62-2Relevant articles and documents

Method for preparing compound

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, (2018/04/01)

The invention provides a method for preparing a compound as shown in a formula I which is described in the specification. The method comprises a step of contacting a compound as shown in a formula III which is described in the specification or a derivative thereof with a compound as shown in a formula II which is described in the specification so as to obtain the compound as shown in the formula I. In the formulas, R1 and R2 are hydrogen, alkoxy groups or heteroaromatic rings, preferably alkoxy groups; and R is hydrogen, an alkyl group, a phenyl group, a substituted phenyl group or a naphthyl group. The compound as shown in the formula I is a tinib drug intermediate 6,7-disubstituted quinazolinone. According to the method provided in embodiments in the invention, aldoketones are used as cyclization raw materials in replacement of carboxylic acids for preparation of tinib drug intermediate, and since the aldoketones are not corrosive, the method has low requirements on reaction equipment and is more favorable for industrial production.

Compounds for use in inhibiting HIV capsid assembly

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Paragraph 0153-0154, (2014/09/03)

The present invention relates to a compound or a pharmaceutically acceptable salt or solvate thereof for use in inhibiting HIV capsid assembly, the compound comprising the core structure wherein E is CR7or S, and wherein f is 0 or 1, and wherein in case E is S, f is 0, and wherein the core structure is at least substituted in 2 and 4 position, and wherein the residue R6 and R7, are, independently of each other, selected from the group consisting of -H, -D, -alkyl, alkoxy, alkenyl, alkynyl, halides, -NO2, - OH, - NH2, -NHR4#, -CN, -S(O)R4#, -SO2R4#, -P(O)R4#R5#, -P(O)(OR4#)R5#, - P(O)(OR4#)(OR5#), -C(O)NR4#R5#, -C(O)SR4#, -C(O)R4#, -C(O)O-R4#, alkoxy and glycol chains; and wherein R6 may optionally form a cyclic residue, with a further substituent present 5 or 6 position, and wherein R4# and R5# are, independently of each other, selected from the group consisting of -H, -alkyl, -alkenyl, - heterocycloalkyl, aryl and heteroaryl.

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