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1263486-03-8

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  • SAGECHEM/ (8α,9S)-6'-Cinchonan-9-amineTrihydrochloride /Manufacturer in China/SAGECHEM

    Cas No: 1263486-03-8

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1263486-03-8 Usage

Chemical Properties

Solid

Check Digit Verification of cas no

The CAS Registry Mumber 1263486-03-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,3,4,8 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1263486-03:
(9*1)+(8*2)+(7*6)+(6*3)+(5*4)+(4*8)+(3*6)+(2*0)+(1*3)=158
158 % 10 = 8
So 1263486-03-8 is a valid CAS Registry Number.

1263486-03-8Relevant articles and documents

The First Enantioselective Total Synthesis of (-)-Trans-Dihydronarciclasine

Varró, Gábor,Hegedus, László,Simon, András,Balogh, Attila,Grün, Alajos,Leveles, Ibolya,Vértessy, Beáta G.,Kádas, István

, p. 1909 - 1917 (2017)

A feasible and enantioselective total synthesis of (-)-Trans-dihydronarciclasine [(-)-1], a highly biologically active alkaloid, was devised starting from vanillin (8). The key step of this new synthesis was an asymmetric, organocatalytic Michael addition, in which an optically active nitropentanone [(-)-13] was obtained from a butenone derivative (12). Excellent enantioselectivity (>99% ee) was achieved using the (8S,9S)-9-Amino(9-deoxy)epiquinine (16) organocatalyst. The target molecule can be prepared in 13 steps from compound (-)-13. The total synthesis has provided a facile and first access to the ent-form of naturally occurring (+)-Trans-dihydronarciclasine, a highly potent cytostatic alkaloid.

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