Diisopropylethylamine → (1-{1-[4-Cyclopentyl-6-(6-fluoro-1H-indol-3-yl)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethyl-propylcarbamoyl}-ethyl)-methyl-carbamic acid benzyl ester

https://huagongshe.com/reaction/1949627

Participants

Role	Name	HCID	Charge
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	Z-N-Me-Ala-OH	HCID 7016365	—
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-Amino-1-[4-cyclopentyl-6-(6-fluoro-1H-indol-3-yl)-hexahydro-pyrrolo[3,2-b]pyrrol-1-yl]-3,3-dimethyl-butan-1-one	HCID 67408385	—
Solvent	Ethyl Acetate	HCID 8857	—
Solvent	N-methyl-2-pyrrolidone	HCID 13387	—
Product	(1-{1-[4-Cyclopentyl-6-(6-fluoro-1H-indol-3-yl)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethyl-propylcarbamoyl}-ethyl)-methyl-carbamic acid benzyl ester	HCID 67408704	—

Reaction Conditions

Temperature	0 °C

Reaction Steps

To a solution containing Cbz-N(Me)Ala-OH (116 mg, 0.5 mmol) in anhydrous NMP (5 mL) was cooled to 0° C. HATU (191 mg, 0.5 mmol) and DIPEA (148 mg, 0.7 mmol) were added followed by the addition of crude 39 (218 mg, 0.5 mmol) in anhydrous NMP (5 mL). The reaction mixture was slowly warmed to ambient temperature. After 3 h, the reaction mixture was diluted with EtOAc and washed successively with aqueous NaHCO3 and brine, dried over anhydrous Na2SO4, filtered, and concentrated to afford 300 mg of crude 40 as an amber-colored oil which was used without further purification. Mass spectrum, m/z [646.4] (M+H)+.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08399683B2
Source dataset	uspto-grants-2013_03
ORD ID	ord-4864e7574fc1447ba38a0773498fae1d
Source note	uspto-grants-2013_03