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157064-68-1

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157064-68-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157064-68-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,0,6 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 157064-68:
(8*1)+(7*5)+(6*7)+(5*0)+(4*6)+(3*4)+(2*6)+(1*8)=141
141 % 10 = 1
So 157064-68-1 is a valid CAS Registry Number.

157064-68-1Relevant articles and documents

Biheterocycles: Synthesis and antimicrobial activity of 1',3',4'-oxadiazolyl/1'-pyrrolyl/1',2',4'-triazolylmethoxyindole derivatives

Gadaginamath, Guru S.,Kamat, Anand G.

, p. 544 - 551 (2007/10/03)

The chemoselectivity of C-5 ester over C-3 acetyl function towards the nucleophilic attack of hydrazine hydrate lead to the exclusive formation of substituted indol-5-yloxyacetic acid hydrazides (3a-h) from 5-ethoxycarbonylmethoxyindoles (2a-h).The acid hydrazides (3a-h) have been converted into the desired substituted 5-(5'-mercapto-1',3',4'-oxadiazol-2'-yl)methoxyindoles (5a-h), 5-(2',5'-dimethylpyrrol-1'-ylaminocarbonyl)methoxyindoles (6a-h) and 5-(4'-amino-5'-mercapto-1',2',4'-triazol-3'-yl)-methoxyindoles (7a-h).These acid hydrazides have also been converted intothe indol-5-ylomethylcarbothiosemicarbazides (8a-h) which on treatment with iodine-potassium iodide and sodium hydroxide give the desired 5-(5'-anilino-1',3',4'-oxadizol-2'-yl)-methoxyindoles and 5-(4'-phenyl-5'-mercapto-1',2',4'-triazol-3'-yl)-methoxyindoles respectively.Allthe newly synthesised compounds have been screened for their antibacterial and antifungal activities.

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