| 摘要 |
<p>1,216,247. Synthetic resins containing N- acylamino acid residues. FARBWERKE HOECHST A.G. 18 March, 1968 [17 March. 1967], No. 12910/68. Heading C3R. Synthetic resins containing N-acylamino-acid residues are obtained by reacting N-acylamino acid-(thiophen-2)-methyl esters with condensation products of phenol ethers and formaldehyde In Examples resins are obtained by reacting tert. - butyloxy - carbonyl - glycine - (thiophen-2)-methyl ester, tert.-butyloxy-L-leucine- [thiophen (2)-methyl]-ester, nitrophenyl-sulphenyl - L - alanine - [thiophen (2) - methyl] - ester and nitrophenyl - sulphenyl - L-leucine - [thiophen (2) - methyl] - ester with condensation products obtained from formaldehyde and resorcinol-dimethyl ether.</p> |
