(2S)-1-[(2S)-2-methyl-3-nitrososulfanylpropanoyl]pyrrolidine-2-carboxylic acid

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparations of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1 N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals were obtained that were the product eluted with water

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparations of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1 N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals were obtained that were the product eluted with water

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparations of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1 N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals were obtained that were the product eluted with water

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparation of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals (m.p. 98°-104° C.) were obtained that were shown to be S-nitrosocaptopril by NMR in deuterated DMSO and by mass spectroscopy. the product eluted with water

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparation of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals (m.p. 98°-104° C.) were obtained that were shown to be S-nitrosocaptopril by NMR in deuterated DMSO and by mass spectroscopy. the product eluted with water

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparation of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals (m.p. 98°-104° C.) were obtained that were shown to be S-nitrosocaptopril by NMR in deuterated DMSO and by mass spectroscopy. the product eluted with water

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparation of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1 N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals (m.p. 98-104° C.) were obtained that were shown to be S-nitrosocaptopril by NMR in deuterated DMSO and by mass spectroscopy. the product eluted with water

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 50 mg of Captopril (0.236 mMoles) was dissolved in 10 ml of 0.1 M HCl at room temperature and cooled briefly in an ice bath. A total of 0.25 ml of 1 M NaNO2 was then added in several small portions with rapid swirling. After 2 min on ice, 1.0 ml of 0.5 M Na2HPO4 was added and the solution was adjusted to pH 7.3 with 0.1 M NaOH. The solution displayed absorption maxima at 542 nm (E=19.8 M-1 cm-1) and 330 nm (E=995 M-1 cm-1). cooled briefly in an ice bath absorption maxima at 542 nm (E=19.8 M-1 cm-1) and 330 nm (E=995 M-1 cm-1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Typical preparations of S-nitrosocaptopril involve the reaction of 50 mM captopril with 50 mM NaNO2 in 0.1 N acetic or sulfuric acid at room temperature for five minutes, after which the reaction solution is passed over a cation exchange resin, e.g., Dowex 50 in the protonated form, and the product eluted with water. The fractions that give positive reactions with N-(1-naphthyl)ethylenediamine, after exposure to 0.15% HgCl2 and diazotization with sulfanilamide, are lyophilized. Hygroscopic, bright red crystals were obtained that were the product eluted with water