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40016-69-1

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40016-69-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40016-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,1 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40016-69:
(7*4)+(6*0)+(5*0)+(4*1)+(3*6)+(2*6)+(1*9)=71
71 % 10 = 1
So 40016-69-1 is a valid CAS Registry Number.

40016-69-1Relevant articles and documents

Synthesis of β-Lactams by Palladium(0)-Catalyzed C(sp3)?H Carbamoylation

Dailler, David,Rocaboy, Ronan,Baudoin, Olivier

, p. 7218 - 7222 (2017/06/13)

A general and user-friendly synthesis of β-lactams is reported that makes use of Pd0-catalyzed carbamoylation of C(sp3)?H bonds, and operates under stoichiometric carbon monoxide in a two-chamber reactor. This reaction is compatible with a range of primary, secondary and activated tertiary C?H bonds, in contrast to previous methods based on C(sp3)?H activation. In addition, the feasibility of an enantioselective version using a chiral phosphonite ligand is demonstrated. Finally, this method can be employed to synthesize valuable enantiopure free β-lactams and β-amino acids.

Discovery of novel quaternary ammonium derivatives of (3R)-quinuclidinyl carbamates as potent and long acting muscarinic antagonists

Prat, Maria,Buil, María Antonia,Fernández, Maria Dolors,Castro, Jordi,Monleón, Juan Manuel,Tort, Laia,Casals, Gaspar,Ferrer, Manuel,Huerta, Josep Maria,Espinosa, Snia,López, Manuel,Segarra, Victor,Gavald, Amadeu,Miralpeix, Montserrat,Ramos, Israel,Vilella, Dolors,González, Marisa,Córdoba, Mnica,Cárdenas, Alvaro,Antón, Francisca,Beleta, Jorge,Ryder, Hamish

, p. 3457 - 3461 (2011/06/24)

Novel quaternary ammonium derivatives of N,N-disubstituted (3R)-quinuclidinyl carbamates have been identified as potent M3 muscarinic antagonists with long duration of action in an in vivo model of bronchoconstriction. These compounds have also presented a high level of metabolic transformation (human liver microsomes). The synthesis, structure-activity relationships and biological evaluation of these compounds are reported.

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