4-(4-chloro-2-fluorophenyl)-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-1-isopropyl-3-methyl-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one → (S)-4-(4-chloro-2-fluorophenyl)-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-1-isopropyl-3-methyl-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one

Participants

Role	Name	HCID	Charge
Reactant	4-(4-chloro-2-fluorophenyl)-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-1-isopropyl-3-methyl-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one	HCID 91826361	—
Reactant	tert-butyl 3-(4-(4-chlorophenyl)-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-3-methyl-6-oxo-5,6-dihydropyrrolo[3,4-c]pyrazol-1(4H)-yl)azetidine-1-carboxylate	HCID 117702723	—
Solvent	Isopropanol	HCID 3776	—
Product	(S)-4-(4-chloro-2-fluorophenyl)-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-1-isopropyl-3-methyl-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one	HCID 91826382	—

Reaction Steps

The title compound (65 mg, 43% yield) was obtained enantiomerically pure (>99% ee) after chiral preparative chromatography (system: MGII preparative SFC; column: Chiralpak AD-H, 30×250 mm; mobile phase: scCO2/iPrOH 75:25; flow: 50 mL/min; temperature: 38° C.; detection UV: 220 nm) of the racemic mixture of 4-(4-chloro-2-fluorophenyl)-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-1-isopropyl-3-methyl-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one (Example 168).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08975417B2
Source dataset	uspto-grants-2015_03
ORD ID	ord-e2271dbe1ac94c06a603f610ff2112b5
Source note	uspto-grants-2015_03