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76104-56-8

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76104-56-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76104-56-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,1,0 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 76104-56:
(7*7)+(6*6)+(5*1)+(4*0)+(3*4)+(2*5)+(1*6)=118
118 % 10 = 8
So 76104-56-8 is a valid CAS Registry Number.

76104-56-8Relevant articles and documents

A Concise Enantiodivergent Synthesis of Equol

Uemura, Takahito,Saito, Yusuke,Sonoda, Motohiro,Tanimori, Shinji

supporting information, p. 693 - 696 (2020/12/23)

Equol, a nonsteroidal estrogen produced from the metabolism of the isoflavonoid phytoestrogen daidzein, has been synthesized as both enantioenriched forms based on MacMillan's α-Arylation of carbonyl compound mediated by amino acid derived indazolidinones and copper precatalysts. The natural form of (S)-equol and its enantiomer (R)-equol have been synthesized in 8 steps from 2,4-dimethoxybenzaldehyde with good enantiomeric purity (90% ee and 90% ee, respectively).

5,6,7,8-TETRAHYDRO-IMIDAZO[1,5-A]PYRAZINE DERIVATIVES

-

Page/Page column 52, (2008/12/06)

The invention relates to 5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine derivatives of formula (I),wherein X represents CH2 or O; R1 represents a phenyl group, which group is independently mono-, di-, or tri-substituted wherein the substituents are independently selected from the group consisting of (C1-4)alkyl, (C1-4)alkoxy, halogen, cyano, trifluoromethoxy and trifluoromethyl; R2 represents (C1-4)alkyl, (C1-4)alkoxy, (C2-4)alkenyl, halogen, cyano, hydroxymethyl, trifluoromethyl, C(O)NR5R6 or cyclopropyl; R3 represents (C1-4)alkyl, (C1-4)alkoxy-methyl or halogen; R4 represents (C1-4)alkyl; R5 represents hydrogen or (C1-4)alkyl; and R6 represents hydrogen or (C1-4)alkyl. The invention also relates to pharmaceutically acceptable salts of such compounds; and to the use of such compounds as medicaments; especially as orexin receptor antagonists.

Synthesis of C-alkylcalix[4]arenes, 6. - The interaction of resorcin[4]arenes with Fe(III) in chloroform

Botta, Bruno,Delle Monache, Giuliano,Ricciardi, Paola,Zappia, Giovanni,Seri, Catia,Gacs-Baitz, Eszter,Csokasi, Pal,Misiti, Domenico

, p. 841 - 847 (2007/10/03)

Resorcinarene octamethyl ethers, bearing carboalkyloxy groups in the side chains, have been shown to interact with Fe(III) in organic media. 1H- NMR studies, carried out using Ga(III) instead of Fe(III), suggest that these systems have two active sites of interaction, the first located at the aromatic moiet and the other in the vicinity of the carbonyl groups. As a confirmation of this, resorcinarenes without carbonyl groups in the side chains have been found to exhibit only one active site. Notably, in the latter case the interaction results in configurational changes.

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