| abstract |
1428039 Peptide intermediates BOFORS AB 1 May 1973 [2 May 1972] 20693/73 Heading C2C [Also in Division C3] Intermediates prepared are N,N<SP>1</SP>-bis-p-nitrophenyl - carbamide, N - p - nitrophenyl-N,N<SP>1</SP>- dicyclohexylcarbamide, CbO - Arg(NO 2 ) - pNA, H - Arg(NO 2 ) - pNA - (HBr), CbO - Arg(NO 2 )- 1 - nitro - 2 - NA, CbO - Arg(NO 2 ) - 4 - nitro- 1 - NA, N<SP>α</SP> - BOC - Lys - (E - CbO) - pNA and H - Lys(E - CbO) - pNA - (CF 3 COOH); where CbO is carbobenzoxy, pNA is p-nitroanilide, NA is naphthylamine and BOC is t-butyloxycarbonyl. |