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157837-30-4

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157837-30-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157837-30-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,3 and 7 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 157837-30:
(8*1)+(7*5)+(6*7)+(5*8)+(4*3)+(3*7)+(2*3)+(1*0)=164
164 % 10 = 4
So 157837-30-4 is a valid CAS Registry Number.

157837-30-4Relevant articles and documents

(+)-cis-N-ethyleneamino-N-normetazocine derivatives. Novel and selective sigma ligands with antagonist properties.

Ronsisvalle,Marrazzo,Prezzavento,Pasquinucci,Vittorio,Pittala,Pappalardo,Cacciaguerra,Spampinato

, p. 1574 - 1580 (1998)

A series of (+)-cis-N-normetazocine derivatives has been described, and their affinities for sigma1, sigma2, and phencyclidine (PCP) sites and opioid, muscarinic (M2), dopamine (D2), and serotonin (5-HT2) receptors were evaluated. The effect of the N-subs

Synthesis of Oxindole Derivatives via Intramolecular C–H Insertion of Diazoamides Using Ru(II)-Pheox Catalyst

Phan Thi Thanh, Nga,Dang Thi Thu, Huong,Tone, Masaya,Inoue, Hayato,Iwasa, Seiji

, (2020/10/02)

This work presented the efficient intramolecular aromatic C–H insertion of diazoacetamide. The 1a–1o diazo compounds (except for 1k) were converted into their corresponding oxindoles via an intramolecular C–H insertion reaction in the presence of a Ru catalyst. The Ru-Pheox catalyst was shown to be highly efficient in this transformation in terms of the regioselectivity, producing the desired products in excellent yield (99%). The efficiency of the Ru catalyst reached 580 (TON) and 156 min?1 (TOF).

Discovery of 1,5-benzodiazepines with peripheral cholecystokinin (CCK-A) receptor agonist activity. 1. Optimization of the agonist "trigger"

Aquino, Christopher J.,Armour, Duncan R.,Berman, Judd M.,Birkemo, Larry S.,Carr, Robin A. E.,Croom, Dallas K.,Dezube, Milana,Dougherty Jr., Robert W.,Ervin, Gregory N.,Grizzle, Mary K.,Head, Julie E.,Hirst, Gavin C.,James, Michael K.,Johnson, Michael F.,Miller, Laurence J.,Queen, Kennedy L.,Rimele, Thomas J.,Smith, David N.,Sugg, Elizabeth E.

, p. 562 - 569 (2007/10/03)

Directed screening of compounds selected from the Glaxo registry file for contractile activity on the isolated guinea pig gallbladder (GPGB) identified a series of 1,5-benzodiazepines with peripheral cholecystokinin (CCK) receptor agonist activity. Agonis

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