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199918-03-1

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199918-03-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199918-03-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,9,1 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 199918-03:
(8*1)+(7*9)+(6*9)+(5*9)+(4*1)+(3*8)+(2*0)+(1*3)=201
201 % 10 = 1
So 199918-03-1 is a valid CAS Registry Number.

199918-03-1Relevant articles and documents

A mild and efficient method for the selective cleavage of primary p-methoxybenzyl protecting group of saccharides by Co2(CO)8-Me2PhSiH-CO system

Qian, Peng-Zhan,Yao, Wang,Huang, Lu-Bai,Meng, Xiang-Bao,Li, Zhong-Jun

, p. 5238 - 5241 (2015)

A mild and efficient method to selectively cleave p-methoxybenzyl (PMB) ether with a catalytic amount of Co2(CO)8, hydrosilane and CO (1 atm) is presented. The cleavage reaction shows regioselectivity to primary O-PMB of a variety of

Chiral and stereoselective total synthesis of novel immunosuppressant FR65814 from D-glucose

Amano, Seiji,Ogawa, Noriko,Ohtsuka, Masami,Chida, Noritaka

, p. 2205 - 2224 (2007/10/03)

The chiral synthesis of the immunosuppressive sesquiterpene, FR65814 1 is described. The cyclohexane ring in 1 was prepared in an optically active form from D-glucose using Ferrier's carbocyclization reaction, and the carbon side-chain in 1 was stereoselectively introduced via chirality transfer by way of Claisen rearrangement of the cyclohexenol derivative, followed by Pd- catalyzed Stille coupling. The bis-epoxide function was stereoselectively constructed by sulfur ylide chemistry and vanadium catalyzed epoxidation of a homoallyl alcohol derivative. This first total synthesis fully confirmed the proposed absolute structure of FR65814.

Synthesis of a photoaffinity analogue of phosphatidylinositol 3,4-bisphosphate, an effector in the phosphoinositide 3-kinase signaling pathway

Thum, Oliver,Chen, Jian,Prestwich, Glenn D.

, p. 9017 - 9020 (2007/10/03)

A Ferrier rearrangement strategy starting from α-D-glucose gave a protected inositol, which after coupling to a chiral diacylglycerol phosphoramidite, provided a tritium-labeled, benzophenone-containing derivative of P-1-(O-aminopropyl) linked dipalmitoyl PtdIns(3,4)P2. Copyright (C) 1996 Elsevier Science Ltd.

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