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2-hydroxy-5-methoxy-3-methyl-6-<7-(3-methyl-2-butenyl)indolin-3-yl>methylpyrazine 1-oxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

157122-50-4

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157122-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157122-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,1,2 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 157122-50:
(8*1)+(7*5)+(6*7)+(5*1)+(4*2)+(3*2)+(2*5)+(1*0)=114
114 % 10 = 4
So 157122-50-4 is a valid CAS Registry Number.

157122-50-4Downstream Products

157122-50-4Relevant academic research and scientific papers

First total synthesis of astechrome: Novel hydroxamic acid with an indole- pyrazine skeleton

Jing,Shimada,Maeda,Arai,Goto,Aoyagi,Ohta

, p. 277 - 279 (1994)

Astechrome (1), isolated from Aspergillus terreus IFO 6123 and 8835, was synthesized. Indolylmagnesium bromide (4) was coupled with a chloromethylpyrazine (5) to give 2-chloro-5-methoxy-3-methyl-6-[7-(3-methyl- 2-butenyl)indol-3-yl]methylpyrazine 1-oxide (6), which was converted to the Fe salt (9) of a hydroxamic acid derivative (8). Oxidation of 9 with (Co(salen) afforded 1.

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