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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 43942Generated: October 25, 2026

Cesium carbonate → Methyl cis(+/-)-5-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)-3-methylthiophene-2-carboxylate

https://huagongshe.com/reaction/43942

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantBinap, (A+-)-HCID 634876—
ReactantMethyl 5-bromo-3-methylthiophene-2-carboxylateHCID 53438912—
ReactantBenzyl cis(+/-)-[3-methoxypiperidin-4-yl]carbamateHCID 86648490—
Catalystpalladium(II) acetateHCID 167845—
ProductMethyl cis(+/-)-5-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)-3-methylthiophene-2-carboxylateHCID 8664882623.6%

Reaction Steps

The same operation as in Example (244b) was performed using methyl 5-bromo-3-methylthiophene-2-carboxylate obtained in Example (245a) (218 mg, 0.93 mmol), benzyl cis(±)-(3-methoxypiperidin-4-yl)-carbamate obtained in Example (40b) (270 mg, 1.02 mmol), palladium acetate (42 mg, 0.19 mmol), BINAP (115 mg, 0.19 mmol) and cesium carbonate (423 mg, 1.30 mmol), to obtain 92 mg of the title compound as a yellow oily substance (24%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536197B2
Source datasetuspto-grants-2013_09
ORD IDord-9f771965f51343cb83a6d86cf4b28fbe
Source noteuspto-grants-2013_09