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158527-21-0

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158527-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158527-21-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,5,2 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 158527-21:
(8*1)+(7*5)+(6*8)+(5*5)+(4*2)+(3*7)+(2*2)+(1*1)=150
150 % 10 = 0
So 158527-21-0 is a valid CAS Registry Number.

158527-21-0Relevant articles and documents

Versatile one-pot reductive alkylation of lactams/amides via amide activation: Application to the concise syntheses of bioactive alkaloids (±)-bgugaine, (±)-coniine, (+)-preussin, and (-)-cassine

Xiao, Kai-Jiong,Wang, Yu,Ye, Ke-Yin,Huang, Pei-Qiang

supporting information; experimental part, p. 12792 - 12796 (2011/02/22)

Direct entry: One-pot reductive alkylation of lactams/amides with Grignard reagents has been realized via lactam/amide activation with Tf2O. This method opens a direct entry to α-alkylated amines. The versatility of the method is illustrated by the concise syntheses of bioactive alkaloids (±)-bgugaine, (±)-coniine, (+)-preussin, and (?)-cassine.

Novel route to the synthesis of hydroxylated pyrrolidine derivatives via the intramolecular reaction of γ-aminoallylstannane with aldehyde. Total synthesis of (+)-preussin

Kadota, Isao,Saya, Shioko,Yamamoto, Yoshinori

, p. 335 - 348 (2007/10/03)

The thermal cyclization of γ-aminoallylstannane (8) having an aldehyde group gave β-hydroxypyrrolidine derivative (9a) as a sole product. This methodology was applied successfully to the total synthesis of (+)-preussin.

A Concise Synthesis of the Antifungal Agent (+)-Preussin

Overhand, Mark,Hecht, Sidney M.

, p. 4721 - 4722 (2007/10/02)

The antifungal agent (+)-preussin (1) was synthesized in five efficient transformations from t-Boc-(S)-phenylalanine.The key step involved the Hg(II)-mediated ring closure of ynone 4, a 5-endo-dig process.

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