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67175-79-5

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67175-79-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67175-79-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,1,7 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 67175-79:
(7*6)+(6*7)+(5*1)+(4*7)+(3*5)+(2*7)+(1*9)=155
155 % 10 = 5
So 67175-79-5 is a valid CAS Registry Number.

67175-79-5Upstream product

67175-79-5Relevant articles and documents

Synthesis and pharmacological evaluation of dhβe analogues as neuronal nicotinic acetylcholine receptor antagonists

Jepsen, Tue Heesgaard,Jensen, Anders A.,Lund, Mads Henrik,Glibstrup, Emil,Kristensen, Jesper Langgaard

, p. 766 - 770 (2014)

Dihydro-β-erythroidine (DHβE) is a member of the Erythrina family of alkaloids and a potent competitive antagonist of the α4β2-subtype of the nicotinic acetylcholine receptors (nAChRs). Guided by an X-ray structure of DHβE in complex with an ACh binding p

An Efficient Palladium Mediated Synthesis of (±)-γ-Lycorane

Shao, Zhihui,Chen, Jingbo,Huang, Rong,Wang, Chenying,Li, Liang,Zhang, Hongbin

, p. 2228 - 2230 (2007/10/03)

An intramolecular approach incorporating a Michael addition followed by a palladium-mediated arylation of ketone towards the synthesis of Amaryllidaceae alkaloid (±)-γ-lycorane was reported.

Total synthesis of (±)-deethylibophyllidine: Studies of a Fischer indolization route and a successful approach via a Pummerer rearrangement/thionium ion-mediated indole cyclization

Bonjoch, Josep,Catena, Juanlo,Valls, Nativitat

, p. 7106 - 7115 (2007/10/03)

The total synthesis of (±)-deethylibophyllidine is described, proceeding in eight steps from 4-(methoxyphenyl)ethylamine in 5% overall yield (Scheme 6). In terms of sequential annulation, the strategy involves the following operations: E → DE → ABDE → ABCDE (Scheme 1). The key steps in the synthesis are the stereoselective formation of octahydroindol-6-ones by acid treatment of dihydroanisole derivatives, the regioselective Fischer indolization to obtain octahydropyrrolo[3,2-c]carbazoles, and the tandem process consisting of Pummerer rearrangement upon a β-amino sulfoxide and thionium ion cyclization upon a β-indole position of a 2,3-disubstituted indole to generate the quaternary spiro center. Attempts to effect the construction of the pentacyclic framework by means of Fischer indolization of the octahydropyrrolo[3,2,1-hi]indol-6-one resulted in failure (Scheme 2).

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