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139543-66-1

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139543-66-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139543-66-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,4 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139543-66:
(8*1)+(7*3)+(6*9)+(5*5)+(4*4)+(3*3)+(2*6)+(1*6)=151
151 % 10 = 1
So 139543-66-1 is a valid CAS Registry Number.

139543-66-1Relevant articles and documents

Discovery, synthesis, and optimization of an N-alkoxy indolylacetamide against HIV-1 carrying NNRTI-resistant mutations from the Isatis indigotica root

Ba, Mingyu,Chen, Minghua,Guo, Qinglan,Guo, Ying,Shi, Jiangong,Xin, Yijing,Xu, Chengbo,Zhu, Chenggen

, (2020/02/03)

From an aqueous decoction of the traditional Chinese medicine “ban lan gen” (the Isatis indigotica root), an antiviral natural product CI - 39 was isolated as an NNRTI (non-nucleoside reverse transcriptase inhibitor) (EC50 = 3.40 μM). Its novel structure was determined as methyl (1-methoxy-1H-indol-3-yl)acetamidobenzoate by spectroscopic data and confirmed by single crystal X-ray diffraction. Through synthesis and structure-activity relationship (SAR) investigation of CI - 39 and 57 new derivatives (24 with EC50 values of 0.06–8.55 μM), two optimized derivatives 10f and 10i (EC50: 0.06 μM and 0.06 μM) having activity comparable to that of NVP (EC50 = 0.03 μM) were obtained. Further evaluation verified that 10f and 10i were RT DNA polymerase inhibitors and exhibited better activities and drug resistance folds compared to NVP against seven NNRTI-resistant strains carrying different mutations. Especially, 10i (EC50 = 0.43 μM) was more active to the L100I/K103N double-mutant strain as compared to both NVP (EC50 = 0.76 μM) and EFV (EC50 = 1.08 μM). The molecular docking demonstrated a possible binding pattern between 10i and RT and revealed activity mechanism of 10i against the NNRTI-resistant strains.

Indole compound with antivirus activity in radix isatidis and derivative of indole compound

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Paragraph 0266, (2017/09/29)

The invention discloses an indole compound extracted from radix isatidis shown in a general formula (I) and a derivative of the indole compound, as well as a salt acceptable on pharmacy, a preparation method of the compound, and a medicinal composite. The compound has apparent HIV-resisting activity and influenza virus-resisting activity, and can be used for preparing drugs or healthcare products for resisting HIV or influenza viruses. (The formula is shown in the description.).

3-aryl-4(3H)quinazolinone CCK antagonists and pharmaceutical formulations thereof

-

, (2008/06/13)

Novel substituted quinazolinones have been found to exhibit specific binding to cholecystokinin (CCK) receptors in the brain and/or peripheral site such as the pancreas and ileum. The quinazolinones are CCK receptor antagonists and find therapeutic applic

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