Tetrahedron Letters p. 2287 - 2290 (1987)
Update date:2022-08-04
Topics:
Ramage, R.
Green, J.
A new acid labile protecting group for the guanido side chain functionality of arginine has been developed.NG-(2,2,5,7,8-Pentamethylchroman-6-sulphonyl)-L-arginine, prepared from Nα-benzyloxycarbonyl-L-arginine and 2,2,5,7,8-pentamethylchroman-6-sulphonyl chloride, is cleaved rapidly in trifluoroacetic acid (TFA) or 50percent TFA in dichloromethane at room temperature.
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