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122079-53-2

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122079-53-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122079-53-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,0,7 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 122079-53:
(8*1)+(7*2)+(6*2)+(5*0)+(4*7)+(3*9)+(2*5)+(1*3)=102
102 % 10 = 2
So 122079-53-2 is a valid CAS Registry Number.

122079-53-2Relevant articles and documents

1-CYANO-PYRROLIDINE DERIVATIVES AS DUB INHIBITORS

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Paragraph 0755; 0758, (2020/11/30)

The present invention relates to novel compounds and methods for the manufacture of inhibitors of deubiquitylating enzymes (DUBs). In particular, the invention relates to the inhibition of ubiquitin C-terminal hydrolase 30 or ubiquitin specific peptidase 30 (USP30). The novel compounds have formula (I): (Formula (I)) or are pharmaceutically acceptable salts thereof, wherein: R1a, R1b, R1c, R1d, R1e and R1f each independently represent hydrogen, optionally substituted C1-C6 alkyl or optionally substituted C3-C4 cycloalkyl, or R1b and R1c together form an optionally substituted C3-C6 cycloalkyl ring, or R1d and R1e together form an optionally substituted C3-C6 cycloalkyl ring; R2 represents hydrogen or optionally substituted C1-C6 alkyl; A represents an optionally further substituted 5 to 10 membered monocyclic or bicyclic heteroaryl, heterocyclyl or aryl ring; L represents a covalent bond or linker; B represents an optionally substituted 3 to 10 membered monocyclic or bicyclic heterocyclyl, heteroaryl, cycloalkyl or aryl ring; and when -A-L-B is at position x attachment to A is via a carbon ring atom of A, and either: A cannot be triazolopyridazinyl, triazolopyridinyl, imidazotriazinyl, imidazopyrazinyl or pyrrolopyrimidinyl; or B cannot be substituted with phenoxyl; or B cannot be cyclopentyl when L is an oxygen atom.

Palladium-catalyzed intramolecular carbene insertion into C(sp3)-H bonds

Solé, Daniel,Mariani, Francesco,Bennasar, M.-Llu?sa,Fernández, Israel

, p. 6467 - 6470 (2016/06/01)

A palladium-catalyzed carbene insertion into C(sp3)-H bonds leading to pyrrolidines was developed. The coupling reaction can be catalyzed by both Pd0 and PdII, is regioselective, and shows a broad functional group tolerance. This reaction is the first example of palladium-catalyzed C(sp3)-C(sp3) bond assembly starting from diazocarbonyl compounds. DFT calculations revealed that this direct C(sp3)-H bond functionalization reaction involves an unprecedented concerted metalation-deprotonation step. Pd in action: Palladium has been used to catalyze the C(sp3)-H insertion of metal carbenoids derived from α-diazoesters to form pyrrolidines through intramolecular assembly of C(sp3)-C(sp3) bonds. A reaction mechanism involving a metalation-deprotonation step instead of the usual concerted but asynchronous process is proposed.

Parent and N-substitued azomethine ylides from α-amino acids and formaldehyde. An easy access to 2,5-unsubstituted pyrrolidines. Evidence for oxazolidin-5-ones as direct precursor of these reactive intermediates

Joucla, Marc,Mortier, Jacques

, p. 579 - 583 (2007/10/02)

Formaldehyde reacts with α-amino acids and electron deficient alkenes to produce pyrrolidines.Azomethine ylides involved as intermediates in these reactions have been generated from isolated oxazolidin-5-ones which can be considered as the direct precursors of these ylides.

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