Hydrochloric Acid → 2-{2-[3-Benzyloxy-4-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-benzyl]-phenyl}-N-ethylacetamide

Participants

Role	Name	HCID	Charge
Reactant	Hydrochloric Acid	HCID 313	—
Reactant	Ethylamine	HCID 6341	—
Reactant	Diisopropylethylamine	HCID 81531	—
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	{2-[3-Benzyloxy-4-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-benzyl]-phenyl}-acetic Acid	HCID 68839879	—
Solvent	Dimethyl Sulfoxide	HCID 679	—
Product	2-{2-[3-Benzyloxy-4-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-benzyl]-phenyl}-N-ethylacetamide	HCID 68839667	—

Reaction Steps

To a solution of {2-[3-benzyloxy-4-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-benzyl]-phenyl}-acetic acid (40 mg, 0.86 mmol) in DMSO (0.7 mL) is added HATU (49 mg, 0.129 mmol) and diisopropylethylamine (0.045 mL, 0.256 mmol). The mixture is stirred for 5 min then ethylamine (0.086 mL, 2M in THF) is added dropwise. Upon completion of the reaction, the mixture is acidified with 1N HCl and extracted with EtOAc. The organic phase is washed with brine and dried over magnesium sulfate. The solvent is removed under reduced pressure to give the title compound which is used directly in the next step.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08084448B2
Source dataset	uspto-grants-2011_12
ORD ID	ord-4745cd3985534e2e9ac180e8e51c15fd
Source note	uspto-grants-2011_12