Diisopropylethylamine → {3-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)-5-[4-(trifluoromethoxy)phenyl]piperidin-1-yl}(thiomorpholin-4-yl)methanone

https://huagongshe.com/reaction/220026

Participants

Role	Name	HCID	Charge
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	N'-Hydroxycyclopropanecarboximidamide	HCID 2794666	—
Reactant	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
Reactant	1-(Thiomorpholin-4-ylcarbonyl)-5-[4-(trifluoromethoxy)phenyl]piperidine-3-carboxylic acid	HCID 58116581	—
Solvent	Dimethylformamide	HCID 6228	—
Product	{3-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)-5-[4-(trifluoromethoxy)phenyl]piperidin-1-yl}(thiomorpholin-4-yl)methanone	HCID 59606589	—

Reaction Conditions

Temperature	120 °C

Reaction Steps

Alternative Synthesis: 600 mg (1.43 mmol) of the compound from Example 25A in dimethylformamide (29.0 ml) were admixed at RT with 654 mg (1.72 mmol) of HATU and 0.55 ml (498 mg, 3.16 mmol) of N,N-diisopropylethylamine, and the mixture was stirred for 30 min. Subsequently, 158 mg (1.58 mmol) of N′-hydroxycyclopropanecarboximidamide were added and the mixture was stirred at RT overnight. The reaction solution was heated to 120° C. and stirred at this temperature for 1 h. The reaction solution was subsequently purified directly by means of preparative HPLC. Yield: 315 mg (45% of theory)

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08202862B2
Source dataset	uspto-grants-2012_06
ORD ID	ord-1a69dfe2a0514102835a70bd511579a9
Source note	uspto-grants-2012_06