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140385-63-3

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140385-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140385-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,3,8 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140385-63:
(8*1)+(7*4)+(6*0)+(5*3)+(4*8)+(3*5)+(2*6)+(1*3)=113
113 % 10 = 3
So 140385-63-3 is a valid CAS Registry Number.

140385-63-3Downstream Products

140385-63-3Relevant articles and documents

Total Synthesis of Optically Active Integerrimine, a Twelve-membered Dilactonic Pyrrolizidine Alkaloid of Retronecine Type

Niwa, Haruki,Miyachi, Yasuyoshi,Okamoto, Osamu,Uosaki, Youichi,Kuroda, Akio,et al.

, p. 393 - 412 (2007/10/02)

A total synthesis of the natural enantiomer of integerrimine (1), a twelve-membered dilactonic pyrrolizidine alkaloid of retronecine type has been achieved through the enantioselective synthesis and regioselective coupling of (+)-retronecine (4) and (+)-integerrinecic acid (methylthio)methyl ether (6).

Enantioselective Synthesis of Seven Pyrrolizidine Diols from a Single Precursor

Chamberlin, A. Richard,Chung, John Y. L.

, p. 4425 - 4431 (2007/10/02)

The enantioselective synthesis of seven pyrrolizidine diols has been accomplished from a single, readily available intermediate.The key step of this general scheme involves an acetoxy-directed acyliminium ion-ketene dithioacetal cationic cyclization to gi

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