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1-benzyl-5-hydroxy-4-hydroxymethyl-6,8-dimethoxy-7-methyl-2-oxo-2,2a,4,8b-tetrahydro-1H-1,3-diaza-cyclobuta[a]naphthalene-3-carboxylic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

557785-58-7

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557785-58-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 557785-58-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,7,8 and 5 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 557785-58:
(8*5)+(7*5)+(6*7)+(5*7)+(4*8)+(3*5)+(2*5)+(1*8)=217
217 % 10 = 7
So 557785-58-7 is a valid CAS Registry Number.

557785-58-7Relevant academic research and scientific papers

Synthetic studies on ecteinascidin-743: Constructing a versatile pentacyclic intermediate for the synthesis of ecteinascidins and saframycins

Jin, Wei,Metobo, Sammy,Williams, Robert M.

, p. 2095 - 2098 (2007/10/03)

(Matrix presented) The asymmetric synthesis of a highly functionalized pentacyclic tetrahydroisoquinoline relevant to the ecteinascidin, saframycin, safracin, and renieramycin family of antitumor alkaloids is described.

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