Specific salt, anhydrous and crystalline form of a dihydropteridione derivative
The present invention relates to a specific salt of a dihydropteridione derivative, namely the trihydrochloride salt of the compound N-[trans-4-[4-(cyclopropylmethyl)-1-piperazinyl]cyclohexyl]-4-[[(7R)-7-ethyl-5,6,7,8-tetrahydro-5-methyl-8-(1-methylethyl)-6-oxo-2-pteridinyl]amino]-3-methoxy-benzamide, to its crystallization in the form of an hydrate with water, to a process for the manufacture thereof, and to the use thereof in a pharmaceutical composition.
1. A crystalline, hydrated form of the trihydrochloride salt of N-[trans-4-[4-(cyclopropylmethyl)-1-piperazinyl]cyclohexyl]-4-[[(7R)-7-ethyl-5,6,7,8-tetrahydro-5-methyl-8-(1-methylethyl)-6-oxo-2-pteridinyl]amino]-3-methoxy-benzamide wherein the hydrated form is mono-, di- or trihydrate or mixtures thereof.
2. A crystalline, hydrated form of the trihydrochloride salt of N-[trans-4-[4-(cyclopropylmethyl)-1-piperazinyl]cyclohexyl]-4-[[(7R)-7-ethyl-5,6,7,8-tetrahydro-5-methyl-8-(1-methylethyl)-6-oxo-2-pteridinyl]amino]-3-methoxy-benzamide, wherein the hydrate contains up to three water molar equivalents.
3. A pharmaceutical composition comprising the crystalline compound in accordance with claim 1 , together with a pharmaceutically acceptable carrier or diluent.
4. The crystalline hydrated form of the trihydrochloride salt of N-[trans-4-[4-(cyclopropylmethyl)-1-piperazinyl]cyclohexyl]-4-[[(7R)-7-ethyl-5,6,7,8-tetrahydro-5-methyl-8-(1-methylethyl)-6-oxo-2-pteridinyl]amino]-3-methoxy-benzamide, having the following characteristic values d: 3.73 Å, 4.13 Å, 4.52 Å, 4.53 Å, 6.55 Å, 7.14 Å, 7.73 Å, 9.01 Å and 11.21 Å wherein the x-ray source is CuKα radiation, λ=1.54056 Å, 40 kV, 40 mA.
5. A pharmaceutical composition comprising the crystalline compound in accordance with claim 4 , together with a pharmaceutically acceptable carrier or diluent.