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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 369196Generated: October 28, 2026

Hydrochloric Acid → HCID 9825536, compound

https://huagongshe.com/reaction/369196

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantL-TryptophanHCID 6305—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
ReactantHCID 10881645HCID 10881645—
SolventDichloromethaneHCID 6344—
SolventTriethylamineHCID 8471—
ProductHCID 9825536HCID 982553683.4%

Reaction Steps

1.88 g of L-Tryptophan in the form of the hydrochloride is introduced into 25 ml of anhydrous methylene chloride and 2.14 ml of triethylamine, 3.1 g of BOP then 2.217 g of the product obtained in Stage 4 above, dissolved in 25 ml of anhydrous methylene chloride, are added. The solution is agitated for 2 hours at ambient temperature, then the solvent is evaporated off, the product obtained in the form of a yellow oil, is then purified by chromatography on silica, with chloroform-ethyl acetate: 85-15 as eluant. After evaporation of the solvent and washing, a yellow gum is obtained. In this way 2.69 g of expected product is obtained (mixture of two diastereoisomers).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06136842
Source datasetuspto-grants-2000_10
ORD IDord-23af68c5b51647f29c68dada01174c67
Source noteuspto-grants-2000_10