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(1R,4R,5S)-1-[(1R)-2-(tert-butyldiphenylsilyloxy)-1-(4-methoxyphenylmethoxy)ethyl]-4-[(1S,2S,3E)-1-hydroxy-4-iodo-2-methoxypent-3-enyl]-7,7-dimethyl-2-oxabicyclo[3.2.0]heptan-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1040833-70-2

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1040833-70-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1040833-70-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,8,3 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1040833-70:
(9*1)+(8*0)+(7*4)+(6*0)+(5*8)+(4*3)+(3*3)+(2*7)+(1*0)=112
112 % 10 = 2
So 1040833-70-2 is a valid CAS Registry Number.

1040833-70-2Relevant academic research and scientific papers

Total syntheses of (+)- and (-)-pestalotiopsin A

Takao, Ken-Ichi,Hayakawa, Nobuhiko,Yamada, Reo,Yamaguchi, Taro,Saegusa, Hiroshi,Uchida, Masatoshi,Samejima, Suguru,Tadano, Kin-Ichi

supporting information; experimental part, p. 6452 - 6461 (2009/12/24)

(Chemical Equation Presented) An enantioselective total synthesis of both enantiomers of caryophyllene-type sesquiterpenoid pestalotiopsin A has been achieved, thereby establishing the absolute stereochemistry of natural (+)-pestalotiopsin A. Highlights o

Total synthesis of (-)-pestalotiopsin A

Takao, Ken-Ichi,Hayakawa, Nobuhiko,Yamada, Reo,Yamaguchi, Taro,Morita, Urara,Kawasaki, Soujiro,Tadano, Kin-Ichi

, p. 3426 - 3429 (2008/12/23)

(Chemical Equation Presented) A big + : The total synthesis of (-)-pestalotiopsin A has been achieved, thereby establishing the absolute stereochemistry of natural (+)-pestalotiopsin A (see scheme). The synthesis features a [2+2] cycloaddition, an aldol reaction, and an intramolecular Nozaki-Hiyama-Kishi reaction to construct the (E)-cyclononene ring.

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