Stable SNS-595 compositions and methods of preparation
Methods of preparing substantially pure SNS-595 substance are disclosed. Also provided are compositions comprising SNS-595 substance that are substantially pure and essentially free of visible particles.
1. A vial comprising a composition, the composition comprises substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid substance, wherein the substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid substance comprises 0 to 0.02% Compound 4
and 0 to 0.02% Compound 5
based on total weight of the substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid sub stance.
2. The vial of claim 1 , wherein the composition consists essentially of (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid, 0 to 0.02% Compound 4, and 0 to 0.02% Compound 5 based on total weight of the composition.
3. The vial of claim 1 further comprising water, wherein the composition is in an aqueous solution in water, and where about 100 mg of substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid substance is present for every 10 mL of the aqueous solution, and the aqueous solution maintains not more than 1000 particles 10 microns per 10 mL of the aqueous solution when stored for at least 1 month.
4. The vial of claim 2 further comprising water, wherein the composition is in an aqueous solution in water, and where about 100 mg of substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid substance is present for every 10 mL of the aqueous solution, and the aqueous solution maintains not more than 1000 particles 10 microns per 10 mL of the aqueous solution when stored for at least 1 month.
5. A vial comprising a composition, wherein the composition comprises substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid substance, wherein the substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid substance comprises 0 to 0.02% Compound 4
and 0 to 0.1% Compound 7
based on total weight of the substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid sub stance.
6. The vial of claim 5 , wherein the substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid further comprises 0 to 0.02% Compound 5
based on total weight of the substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid sub stance.
7. The vial of claim 5 , wherein the composition consists essentially of (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid, 0 to 0.02% Compound 4, 0 to 0.1% Compound 7 and 0 to 0.02% Compound 5 based on total weight of the composition.
8. The vial of claim 5 further comprising water, wherein the composition is in an aqueous solution in water, and where about 100 mg of substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy substance is present for every 10 mL of the aqueous solution, and the aqueous solution maintains not more than 1000 particles ≥10 microns per 10 mL of the aqueous solution when stored for at least 1 month.
9. The vial of claim 6 further comprising water, wherein the composition is in an aqueous solution in water, and where about 100 mg of substantially pure (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy substance is present for every 10 mL of the aqueous solution, and the aqueous solution maintains not more than 1000 particles ≥10 microns per 10 mL of the aqueous solution when stored for at least 1 month.