Vardenafil Impurity 15 synthesis

2synthesis methods

Product Name:Vardenafil Impurity 15
CAS Number:448184-54-1
Molecular formula:C19H23N5O6S
Molecular Weight:449.48

56-40-6 Synthesis

56-40-6
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4-Ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydro-imidazo[5,1-f][1,2,4]-triazin-2-yl)benzene-sulfonyl Chloride

224789-26-8
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448184-54-1
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Yield:448184-54-1 7 g

Reaction Conditions:

Stage #1: glycinewith sodium hydroxide in water at 25 - 30; for 0.5 h;
Stage #2: 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)-benzenelsulfonic acid chloride in dichloromethane;water at 2 - 20; for 2.5 h;

References:

Reddy, Vajrala Venkata;Naga Brahmeswara Rao, Mandava Venkata;Reddy, Ghanta Mahesh;Mukkanti, Khagga;Reddy, Ganta Madhusudhan [Synthetic Communications,2012,vol. 42,# 23,p. 3513 - 3523] Location in patent:experimental part

224789-21-3 Synthesis

2-(2-ETHOXYPHENYL)-5-METHYL-7-PROPYL-3H-IMIDAZOL[5,1-F][1,2,4]-TRIAZIN-4-ONE

224789-21-3
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448184-54-1
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References

Vardenafil Impurity 15 Related Search:

Vardenafil Impurity 7 2-(2-ETHOXYPHENYL)-5-METHYL-7-PROPYL-3H-IMIDAZOL[5,1-F][1,2,4]-TRIAZIN-4-ONE