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198020-19-8

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198020-19-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198020-19-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,0,2 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 198020-19:
(8*1)+(7*9)+(6*8)+(5*0)+(4*2)+(3*0)+(2*1)+(1*9)=138
138 % 10 = 8
So 198020-19-8 is a valid CAS Registry Number.

198020-19-8Relevant articles and documents

Facile Synthesis of Potent HIV-1 Protease Inhibitors containing a Novel Pseudo-symmetric Dipeptide Isostere

Sham, Hing L.,Betebenner, David A.,Zhao, Chen,Wideburg, Norman E.,Saldivar, Ayda,et al.

, p. 1052 - 1053 (1993)

A series of potent inhibitors of the HIV-1 protease containing a novel pseudo-symmetric dipeptide isostere 3 was synthesized via ring opening of a protected epoxide with various substituted hydrazines.

Antiviral drug and its pharmaceutical composition

-

Paragraph 0203-0204, (2017/03/21)

The invention relates to an antiviral medicine and a medicine composition thereof, in particular relates to an anti-human immunodeficiency virus (HIV) medicine and a medicine composition thereof, and especially relates to a medicine which can be taken as

Process for producing 3-amino-2-oxo-1-halogenopropane derivatives

-

, (2008/06/13)

Compounds formed by reacting a protected amino acid with an alkali metal enolate of an alkyl acetate are reacted with a halogenating agent for halogenation of the 2-position, or a protected amino acid is reacted with an alkali metal enolate of an alkyl halogenoacetate, to form a 4-amino-3-oxo-2-halogenobutanoic acid ester derivative, and hydrolysis and decarboxylation are conducted to produce a 3-amino-2-oxo-1-halogenopropane derivative or its salt. The present method is a useful process for producing a 3-amino-2-oxo-1-halogenopropane derivatives which can easily be converted to a 3-amino-1,2-epoxypropane.

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