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51230-16-1

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51230-16-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51230-16-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,2,3 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 51230-16:
(7*5)+(6*1)+(5*2)+(4*3)+(3*0)+(2*1)+(1*6)=71
71 % 10 = 1
So 51230-16-1 is a valid CAS Registry Number.

51230-16-1Relevant articles and documents

Indole compound as well as preparation method, pharmaceutical composition and application thereof

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Paragraph 1138-1143, (2019/12/02)

The invention discloses an indole compound as well as a preparation method, a pharmaceutical composition and an application thereof. Specifically, the invention relates to an indole derivative as shown in a general formula I and a medicinal salt thereof, a preparation method of the indole derivative, a composition containing one or more compounds, and applications of the compounds in preparation of medicines for preventing and/or treating diseases related to IDO1 and/or TDO.

INHIBITORS OF BRUTON'S TYROSINE KINASE

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Page/Page column 48; 50; 53; 64, (2015/06/25)

This application discloses compounds according to generic Formula (I): wherein all variables are defined as described herein, which inhibit Btk. The compounds disclosed herein are useful to modulate the activity of Btk and treat diseases associated with excessive Btk activity. The compounds are useful for the treatment of oncological, auto-immune, and inflammatory diseases caused by aberrant B-cell activation. Also disclosed are compositions containing compounds of Formula I and at least one carrier, diluent or excipient.

The Smiles Rearrangement of 2-Aryloxy-5-nitrophenoxides. Attempted Routes to Benzoxirens and Tribenzotrioxonins

Ramsden, Christopher A.

, p. 2456 - 2463 (2007/10/02)

Formation of dibenzo-p-dioxins by the pyrolysis of 2-halogenophenoxides does not appear to involve intermediate benzoxirens.Thermal self-condensation to potassium 2-bromo-5-nitrophenoxide (1b) gave a mixture of 2,7- and 2,8-dinitrobenzo-p-dioxins (6d) and (6e).The mechanism of formation of the 2,8-isomer (6e) is shown to involve Smiles rearrangement of potassium 2-(2-bromo-5-nitrophenoxy)-5-nitrophenoxide (9a).Further examples of Smiles rearrangements of 2-aryloxy-5-nitrophenoxides and an attempted synthesis of the tribenzotrioxonin derivatives (16) are described.

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