Provided are compounds of Formula (II): or a pharmaceutically acceptable salt thereof, wherein R1, n, and Y1 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (II), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (II), or a pharmaceutically acceptable salt thereof.

##STR00001##

Provided are compounds of Formula (II): or a pharmaceutically acceptable salt thereof, wherein R1, n, and Y1 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (II), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (II), or a pharmaceutically acceptable salt thereof.

##STR00001##

Provided is a method for biocatalytic synthesis of Sitagliptin and intermediates thereof, in particular, provided are compounds of Formula (I) and Formula (II), or pharmaceutically acceptable salts thereof, a polypeptide capable of catalyzing conversion of a compound of Formula (I) to a compound of Formula (II), a nucleic acid encoding the polypeptide, a vector and a cell comprising the nucleic acid. In addition, also provided are a method for producing a compound of Formula (II) and Sitagliptin by using the polypeptide and the compound of Formula (I), and a method for preparing the polypeptide.

The present disclosure provides a benzene fused heterocyclic derivative of Formula (I): is a single or double bond; n is an integer of 0 or 1; A is —CH.sub.2—, —CH(OH)—, or —C(O)—; G is C or N; X is —CH.sub.2—, O, or —C(O)—; Y is alkyl, aryl, or heterocyclic alkyl optionally substituted with at least one substituent independently selected from a group consisting of: H, halogen, alkyl, alkyl substituted with at least one halogen, aryl, aryl substituted with at least one halogen, —NR.sub.y1R.sub.y2, —OR.sub.y1, —R.sub.y1C(O)R.sub.y3, —C(O)R.sub.y1, —C(O)OR.sub.y2, —C(O)OR.sub.y2Ry3, —NR.sub.y1C(O)R.sub.y2, —NR.sub.y1C(O)NR.sub.y2R.sub.y3, —NR.sub.y1C(O)OR.sub.y2R.sub.y3, —NR.sub.y1C(O)R.sub.y2OR.sub.y3, C(O)NR.sub.y1(R.sub.y2R.sub.y3), —C(O)NR.sub.y1(R.sub.y2OR.sub.y1), —OR.sub.y2R.sub.y3, and —OR.sub.y2OR.sub.y3, wherein each of R.sub.y1 and R.sub.y2 is independently selected from a group consisting of H, oxygen, alkyl, and aryl, and R.sub.y3 is aryl optionally substituted with at least one halogen; Z is —NR.sub.z1R.sub.z2, —NR.sub.z1R.sub.z3, —OR.sub.z1, —OR.sub.z1R.sub.z3, —C(O)R.sub.z1R.sub.z3, —C(O)OR.sub.z1R.sub.z3, —NR.sub.z1C(O)R.sub.z2R.sub.z3, —NR.sub.z1C(O)OR.sub.z2R.sub.z3, —C(O)NR.sub.z1R.sub.z3, or OR.sub.z2OR.sub.z3, wherein each of R.sub.z1 and R.sub.z2 is independently selected from a group consisting of H, oxygen, alkyl and aryl, and R.sub.z3 is aryl optionally substituted with at least one substituent independently selected from a group consisting of halogen, OH, —R.sub.zaCOOR.sub.zb, —OR.sub.zaCOOR.sub.zb, —R.sub.zaSO.sub.2R.sub.zb, —R.sub.zaSO.sub.2NR.sub.zbR.sub.zcR.sub.zd, —R.sub.zaC(O)R.sub.zbR.sub.zc, —R.sub.zaC(O)NR.sub.zbR.sub.zcR.sub.zd, —RZ.sub.aC(O)NR.sub.zbSO.sub.2R.sub.zc, wherein Rza is nil or alkyl, R.sub.zb is H or alkyl, each of R.sub.zb and R.sub.zc is independently selected from a group consisting of H, OH, alkyl, aryl, alkoxyl, or NR.sub.zbR.sub.zc is a nitrogen-containing heterocyclic alkyl ring, R.sub.zd is nil or a sulfonyl alkyl group. ##STR00001##

The present disclosure provides a benzene fused heterocyclic derivative of Formula (I): is a single or double bond; n is an integer of 0 or 1; A is —CH.sub.2—, —CH(OH)—, or —C(O)—; G is C or N; X is —CH.sub.2—, O, or —C(O)—; Y is alkyl, aryl, or heterocyclic alkyl optionally substituted with at least one substituent independently selected from a group consisting of: H, halogen, alkyl, alkyl substituted with at least one halogen, aryl, aryl substituted with at least one halogen, —NR.sub.y1R.sub.y2, —OR.sub.y1, —R.sub.y1C(O)R.sub.y3, —C(O)R.sub.y1, —C(O)OR.sub.y2, —C(O)OR.sub.y2Ry3, —NR.sub.y1C(O)R.sub.y2, —NR.sub.y1C(O)NR.sub.y2R.sub.y3, —NR.sub.y1C(O)OR.sub.y2R.sub.y3, —NR.sub.y1C(O)R.sub.y2OR.sub.y3, C(O)NR.sub.y1(R.sub.y2R.sub.y3), —C(O)NR.sub.y1(R.sub.y2OR.sub.y1), —OR.sub.y2R.sub.y3, and —OR.sub.y2OR.sub.y3, wherein each of R.sub.y1 and R.sub.y2 is independently selected from a group consisting of H, oxygen, alkyl, and aryl, and R.sub.y3 is aryl optionally substituted with at least one halogen; Z is —NR.sub.z1R.sub.z2, —NR.sub.z1R.sub.z3, —OR.sub.z1, —OR.sub.z1R.sub.z3, —C(O)R.sub.z1R.sub.z3, —C(O)OR.sub.z1R.sub.z3, —NR.sub.z1C(O)R.sub.z2R.sub.z3, —NR.sub.z1C(O)OR.sub.z2R.sub.z3, —C(O)NR.sub.z1R.sub.z3, or OR.sub.z2OR.sub.z3, wherein each of R.sub.z1 and R.sub.z2 is independently selected from a group consisting of H, oxygen, alkyl and aryl, and R.sub.z3 is aryl optionally substituted with at least one substituent independently selected from a group consisting of halogen, OH, —R.sub.zaCOOR.sub.zb, —OR.sub.zaCOOR.sub.zb, —R.sub.zaSO.sub.2R.sub.zb, —R.sub.zaSO.sub.2NR.sub.zbR.sub.zcR.sub.zd, —R.sub.zaC(O)R.sub.zbR.sub.zc, —R.sub.zaC(O)NR.sub.zbR.sub.zcR.sub.zd, —RZ.sub.aC(O)NR.sub.zbSO.sub.2R.sub.zc, wherein Rza is nil or alkyl, R.sub.zb is H or alkyl, each of R.sub.zb and R.sub.zc is independently selected from a group consisting of H, OH, alkyl, aryl, alkoxyl, or NR.sub.zbR.sub.zc is a nitrogen-containing heterocyclic alkyl ring, R.sub.zd is nil or a sulfonyl alkyl group. ##STR00001##

The invention relates to Fatty Acid Acetylated Salicylate Derivatives; compositions comprising an effective amount of a Fatty Acid Acetylated Salicylate Derivative; and methods for treating or preventing an inflammatory disorder comprising the administration of an effective amount of a Fatty Acid Acetylated Salicylate Derivative.

The invention relates to Fatty Acid Acetylated Salicylate Derivatives; compositions comprising an effective amount of a Fatty Acid Acetylated Salicylate Derivative; and methods for treating or preventing an inflammatory disorder comprising the administration of an effective amount of a Fatty Acid Acetylated Salicylate Derivative.

The present invention refers to a process for transition-metal-assisted .sup.18F-deoxyfluorination of phenols. The transformation benefits from readily available phenols as starting materials, tolerance of moisture and ambient atmosphere, large substrate scope, and translatability to generate doses appropriate for positron emission tomography (PET) imaging.

Provided is a method for biocatalytic synthesis of Sitagliptin and intermediates thereof, in particular, provided are compounds of Formula (I) and Formula (II), or pharmaceutically acceptable salts thereof, a polypeptide capable of catalyzing conversion of a compound of Formula (I) to a compound of Formula (II), a nucleic acid encoding the polypeptide, a vector and a cell comprising the nucleic acid. In addition, also provided are a method for producing a compound of Formula (II) and Sitagliptin by using the polypeptide and the compound of Formula (I), and a method for preparing the polypeptide.

Provided is a method for biocatalytic synthesis of Sitagliptin and intermediates thereof, in particular, provided are compounds of Formula (I) and Formula (II), or pharmaceutically acceptable salts thereof, a polypeptide capable of catalyzing conversion of a compound of Formula (I) to a compound of Formula (II), a nucleic acid encoding the polypeptide, a vector and a cell comprising the nucleic acid. In addition, also provided are a method for producing a compound of Formula (II) and Sitagliptin by using the polypeptide and the compound of Formula (I), and a method for preparing the polypeptide.