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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1807032Generated: November 1, 2026

Hydrochloric Acid → HCID 86640440, compound

https://huagongshe.com/reaction/1807032

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant2-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]ethan-1-amineHCID 28293777—
ReactantHCID 67296997HCID 67296997—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86640440HCID 8664044029%

Reaction Steps

In a manner similar to the method described in Examples 42c and 42d, rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-[3-(4-methoxy-phenyl)-2,2-dimethyl-propyl]-pyrrolidine-2-carboxylic acid prepared in Example 126c (0.5 g, 0.87 mmol) was reacted with 2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethylamine (0.25 g, 1.7 mmol), HATU (0.6 g, 1.7 mmol) and iPr2NEt (0.45 mL, 2.6 mmol) in CH2Cl2 at room temperature for 20 h, then reacted with aqueous HCl solution in tetrahydrofuran at room temperature to give rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-[3-(4-methoxy-phenyl)-2,2-dimethyl-propyl]-pyrrolidine-2-carboxylic acid ((S)-3,4-dihydroxy-butyl)-amide as a white solid (0.16 g, 29%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08354444B2
Source datasetuspto-grants-2013_01
ORD IDord-8f986773d4704db3b8056b69de9d683a
Source noteuspto-grants-2013_01