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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1241968Generated: October 29, 2026

Trifluoroacetic acid methylene chloride → 3-[3-benzyl-5-(3-methyl-3H-benzothiazol-2-ylidene)-4-oxothiazolidin-2-ylideneamino]-4-ethylaminobenzoic acid

https://huagongshe.com/reaction/1241968

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acid methylene chlorideHCID 21863450—
Reactant3-[3-benzyl-5-(3-methyl-3H-benzothiazol-2-ylidene)-4-oxothiazolidin-2-ylideneamino]-4-ethylaminobenzoic acid tert-butyl esterHCID 73855084—
Product3-[3-benzyl-5-(3-methyl-3H-benzothiazol-2-ylidene)-4-oxothiazolidin-2-ylideneamino]-4-ethylaminobenzoic acidHCID 73855012—

Reaction Steps

The product of Example 90 was treated with 55% TFA/DCM for 1 h, concentrated under reduced pressure, diluted with DCM, concentrated once again, diluted with DCM, allowed to stand over solid NaHCO3, filtered and concentrated to afford the title product. MS(ESI): 517 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07115640B2
Source datasetuspto-grants-2006_10
ORD IDord-7df327a8355041ffac76e2588b3c77b4
Source noteuspto-grants-2006_10