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120174-12-1

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120174-12-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120174-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,1,7 and 4 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 120174-12:
(8*1)+(7*2)+(6*0)+(5*1)+(4*7)+(3*4)+(2*1)+(1*2)=71
71 % 10 = 1
So 120174-12-1 is a valid CAS Registry Number.

120174-12-1Relevant articles and documents

Indole Diterpene Synthetic Studies. 2. First-Generation Total Synthesis of (-)-Paspaline

Mewshaw, Richard E.,Taylor, Michael D.,Smith, Amos B.

, p. 3449 - 3462 (2007/10/02)

We record here a full account of the first total synthesis of (-)-paspaline (1), the simplest member of a rapidly growing class of architecturally complex diterpene indole alkaloids, many of which possess potent tremorgenic activity.In terms of sequential annulation, the strategy involves the following operations: DE -> CDE -> CDEF -> ABCDEF.Proceeding in 23 steps from Wieland-Miescher ketone, the synthesis afforded (-)-paspaline (1) in high enantiomeric purity.

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