2,2-difluoropropane-1,3-diamine;dihydrochloride

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 3, step (B)) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH—CH2Cl2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCL3) d 1.19[s, 6H, C(CH3)2], 2.88[m, 4H, C(=N)CH2 & NHCH2], 3.71(t, 3H, JHF=13.19 Hz, CH2NH2), 4.72(t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26(2s, 2H, nitroimid-H) and 10.79(s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH—CH2Cl2 (5:95) The fractions containing compound were collected evaporated

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 3, step (B)) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH—CH2Cl2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCL3) d 1.19[s, 6H, C(CH3)2], 2.88[m, 4H, C(=N)CH2 & NHCH2], 3.71(t, 3H, JHF=13.19 Hz, CH2NH2), 4.72(t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26(2s, 2H, nitroimid-H) and 10.79(s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH—CH2Cl2 (5:95) The fractions containing compound were collected evaporated

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 3, step (B)) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH—CH2Cl2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCl3) d 1.19 [s, 6H, C(CH3)2], 2.88 [m, 4H, C(═N)CH2 & NHCH2], 3.71 (t, 3H, JHF=13.19 Hz, CH2NH2), 4.72 (t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26 (2s, 2H, nitroimid-H) and 10.79 (s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH—CH2Cl2 (5:95) The fractions containing compound were collected evaporated

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 3,step (B) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH—CH2Cl2 (5.95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCl3) d 1.19[s, 6H, C(CH3)2], 2.88[m, 4H, C(=N)CH2 &NCH2], 3.71(t, 3H, JHF=13.19 Hz, CH2NH2), 4.72(t, 2H, J=7.26 , CH2CH2N), 7.11 & 7.26(2s, 2H, nitroimid-H) and 10.79(s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH—CH2Cl2 (5.95) The fractions containing compound were collected evaporated

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2.95 g (16.12 mmol) of 2,2-difluoro-1,3-propandiamine dihydrochloride (Tetrahedron (1994) 50(29), 8617-8632), 1.54 g (16.12 mmol) of guanidine hydrochloride and 2.19 g (32.23 mmol) of sodium methylate was heated at 150° C. during 18 h. The cooled mixture was used as such in the subsequent step.

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 3, step (B)) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH—CH2Cl2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCL3) d 1.19[s, 6H, C(CH3)2], 2.88[m, 4H, C(=N)CH2 & NHCH2], 3.71(t, 3H, JHF=13.19 Hz, CH2NH2), 4.72(t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26(2s, 2H, nitroimid-H) and 10.79(s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH—CH2Cl2 (5:95) The fractions containing compound were collected evaporated

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2.95 g (16.12 mmol) of 2,2-difluoro-1,3-propandiamine dihydrochloride (Tetrahedron (1994) 50(29), 8617-8632), 1.54 g (16.12 mmol) of guanidine hydrochloride and 2.19 g (32.23 mmol) of sodium methylate was heated at 150° C. during 18 h. The cooled mixture was used as such in the subsequent step.

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 35 step (B)) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH-CH2Ch2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCl3) d 1.19[s, 6H, C(CH3)2], 2.88[m, 4H, C(═N)CH2 & NHCH2], 3.71(t, 3H, JHF=13.19 Hz, CH2NH2), 4.72(t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26(2s, 2H, nitroimid-H) and 10.79(s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH-CH2Ch2 (5:95) The fractions containing compound were collected evaporated

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2.95 g (16.12 mmol) of 2,2-difluoro-1,3-propandiamine dihydrochloride (Tetrahedron (1994) 50(29), 8617-8632), 1.54 g (16.12 mmol) of guanidine hydrochloride and 2.19 g (32.23 mmol) of sodium methylate was heated at 150° C. during 18 h. The cooled mixture was used as such in the subsequent step.

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 35 step (B)) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH-CH2Ch2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCl3) d 1.19[s, 6H, C(CH3)2], 2.88[m, 4H, C(═N)CH2 & NHCH2], 3.71(t, 3H, JHF=13.19 Hz, CH2NH2), 4.72(t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26(2s, 2H, nitroimid-H) and 10.79(s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH-CH2Ch2 (5:95) The fractions containing compound were collected evaporated

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 3, step (B)) (0.50 g, 1.90 mmol) in small portions with 30 stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH--CH2Cl2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112°-114° C.; 1H NMR (CDCl3) d 1.19 [s, 6H, C(CH3)2 ], 2.88 [m, 4H, C(=N)CH2 & NHCH2 ], 3.71 (t, 3H, JHF =13.19 Hz, CH2NH2), 4.72 (t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26 (2s, 2H, nitroimid-H) and 10.79 (s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH--CH2Cl2 (5:95) The fractions containing compound were collected evaporated

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

Procedure: To a mixture of 1,3-diamino-2,2-difluoropropane dihydrochloride (title A diamine) (1.10 g, 6.01 mmol) and N,N-diisopropylethylamine (2.72 g, 21.04 mmol) in acetonitrile (10 mL) at 40° C. was added 4-chloro-4-methyl-1-(2-nitro-1H-imidazol-1-yl)-3-nitrosopentane (Example 3, step (B)) (0.50 g, 1.90 mmol) in small portions with stirring under nitrogen atmosphere. After the addition, the stirring was continued for an additional 30 minutes and the solvent was removed on a rotary evaporator. The paste obtained was treated with silica gel and the silica gel powder impregnated with the compound was loaded onto a silica gel column and eluted with CH3OH—CH2Cl2 (5:95). The fractions containing compound were collected and evaporated to give the title product as a light yellow colored solid. Yield: 0.42 g (66%), mp. 112-114° C.; 1H NMR (CDCl3) d 1.19 [s, 6H, C(CH3)2], 2.88 [m, 4H, C(═N)CH2 & NHCH2], 3.71 (t, 3H, JHF=13.19 Hz, CH2NH2), 4.72 (t, 2H, J=7.26, CH2CH2N), 7.11 & 7.26 (2s, 2H, nitroimid-H) and 10.79 (s, 1H, NOH). MS m/e 335 (M+H)+. After the addition the solvent was removed on a rotary evaporator The paste obtained was treated with silica gel eluted with CH3OH—CH2Cl2 (5:95) The fractions containing compound were collected evaporated