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(R)-((3R,4R,E)-7-((S,2E,4E)-8-(tert-butyldimethylsilyloxy)-6-(tert-butyldiphenylsilyloxy)-4-methylocta-2,4-dienylamino)-2,4-dimethyl-7-oxohept-5-en-3-yl) 1-(2-(chloromethyl)-oxazole-4-carbonyl)pyrrolidine-2-carboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

208465-69-4

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  • (R)-((3R,4R,E)-7-((S,2E,4E)-8-(tert-butyldimethylsilyloxy)-6-(tert-butyldiphenylsilyloxy)-4-methylocta-2,4-dienylamino)-2,4-dimethyl-7-oxohept-5-en-3-yl) 1-(2-(chloromethyl)-oxazole-4-carbonyl)pyrrolidine-2-carboxylate

    Cas No: 208465-69-4

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  • Weifang Yukai Chemical Co.,Ltd.
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  • (R)-((3R,4R,E)-7-((S,2E,4E)-8-(tert-butyldimethylsilyloxy)-6-(tert-butyldiphenylsilyloxy)-4-methylocta-2,4-dienylamino)-2,4-dimethyl-7-oxohept-5-en-3-yl) 1-(2-(chloromethyl)-oxazole-4-carbonyl)pyrrolidine-2-carboxylate

    Cas No: 208465-69-4

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  • Jiangsu Congzhong Chemical Co., Ltd.
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208465-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 208465-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,4,6 and 5 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 208465-69:
(8*2)+(7*0)+(6*8)+(5*4)+(4*6)+(3*5)+(2*6)+(1*9)=144
144 % 10 = 4
So 208465-69-4 is a valid CAS Registry Number.

208465-69-4Relevant articles and documents

Total synthesis of (-)-virginiamycin m2: Application of crotylsilanes accessed by enantioselective Rh(II) or Cu(I) promoted carbenoid Si-H insertion

Wu, Jie,Panek, James S.

, p. 9900 - 9918 (2012/03/08)

A stereoselective synthesis of the antibiotic (-)-virginiamycin M 2 is detailed. A convergent strategy was utilized that proceeded in 10 steps (longest linear sequence) from enantioenriched silane (S)-15. This reagent, which was prepared via a Rh(II)- or Cu(I)-catalyzed carbenoid Si-H insertion, was used to introduce the desired olefin geometry and stereocenters of the C1-C5 propionate subunit. A modified Negishi cross-coupling or an efficient alkoxide-directed titanium-mediated alkyne-alkyne reductive coupling strategy was utilized to assemble the trisubstituted (E,-E)-diene. An underutilized late-stage SmI2-mediated macrocyclization was employed to construct the 23-membered macrocycle scaffold of the natural product (Figure presented).

Total synthesis of (-)-virginiamycin M2

Wu, Jie,Panek, James S.

supporting information; experimental part, p. 6165 - 6168 (2010/12/19)

Has a nice ring to it: A concise and modular total synthesis of the naturally occurring antibiotic virginiamycin M2 is described. A Barbier-type cyclization was used to close the 23-membered macrocycle and deliver virginiamycin M2 in 19 steps from a chiral organosilane.

Total synthesis of pristinamycin II(B)

Breuilles,Uguen

, p. 3149 - 3152 (2007/10/03)

An intramolecular Takai reaction of the iodoaldehyde 4a proceeded with a moderate efficiency to give the macrocyclic hydroxy compound 1b, identified to an authentic sample.

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