Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1489307Generated: October 25, 2026

Dicyclohexylcarbodiimide → 5-(N-(9-fluorenylmethoxycarbonyl)valylamino)-1,3,4-thiadiazole-2-thione

https://huagongshe.com/reaction/1489307

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantFMOC-L-valineHCID 688217—
Reactant2-Amino-5-mercapto-1,3,4-thiadiazoleHCID 2723847—
Product5-(N-(9-fluorenylmethoxycarbonyl)valylamino)-1,3,4-thiadiazole-2-thioneHCID 22878134—

Reaction Steps

Fmoc-Valine (0.68 grams), 1-hydroxybenzotriazole (0.36 grams), dicyclohexylcarbodiimide (0.42 grams) and 5-amino-1,3,4-thiadiazole-2-thione (0.4 grams) were reacted according to the procedures described in Example 1. The resulting product was recrystallized from ethanol-pentane. M.P. 141°-144° C. NMR spectrum (d6 -DMSO) 14.06 (s, 1H), 12.56 (s,1H), 8.00-7.60;7.5-7.2 (m, 9H; NH+aromatics) 4.4-4.0 (m, 4H) 2.2-2.0 (m, 1H), 0.98 (bs, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05677282
Source datasetuspto-grants-1997_10
ORD IDord-4904cd000eab4f4caee6c90da1a0a0d6
Source noteuspto-grants-1997_10