HCID 71724478, compound → Sitagliptin

HRID 2191362Notes

Reaction equation

HRID 2191362 reaction equation
[CH:1]1[C:2]([CH2:10][C@@H:11]([NH2:28])[CH2:12][C:13]([N:15]2[CH2:27][C:19]3=[N:20][N:21]=[C:22]([C:23]([F:26])([F:25])[F:24])[N:18]3[CH2:17][CH2:16]2)=[O:14])=[C:3]([F:9])[CH:4]=[C:5]([F:8])[C:6]=1[F:7].S([O-])([O-])(=O)=O>C(OCC)(=O)C>[CH:1]1[C:2]([CH2:10][C@@H:11]([NH2:28])[CH2:12][C:13]([N:15]2[CH2:27][C:19]3=[N:20][N:21]=[C:22]([C:23]([F:26])([F:25])[F:24])[N:18]3[CH2:17][CH2:16]2)=[O:14])=[C:3]([F:9])[CH:4]=[C:5]([F:8])[C:6]=1[F:7]

Participants

3

Reactant 1

HCID 71724478HCID 71724478, compound

Product 1

HCID 4369359Sitagliptin

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

Sitagliptin sulfate crystalline Form S6 can be prepared by a process comprising forming a solution of Sitagliptin base in ethyl acetate; combining the solution with sulfuric acid to form a precipitate; and isolating the obtained precipitate. The obtained precipitate can be further dried. Preferably, the sulfuric acid is used at a mol ratio of about 1:0.5 of Sitagliptin base to sulfuric acid.

Sources & evidence

ORD record
ord-fe8b2a07b3174d0dabf698915579eb95
Source dataset
uspto-grants-2012_12
Patent number
US08329696B2

Reaction notes

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