Reagents and Synthetic Methods; 19. Synthesis ofN-(N-Aryl- orN-Alkylaminocarbonyl)-amino Acids by Addition ofN,O-Bis[trimethylsilyl]amino Acids to Isocyanates
A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m . . . (1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR″ group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.)
一种热敏记录材料包括含有碱性染料和显影剂的热敏记录层,并设置在支撑体上,其中显影剂是至少一种由以下通式表示的N-取代氨基酸衍生物:(R-X)m-Y-(Z)m......。(1) (在式(1)中,R 代表烷基或芳基,可带有取代基。X 是与 Y 的 N 末端键合的基团,代表-OCO-、-SO2NHCO-、-NHCO-、-NHCS- 或-SO2-。Y 代表氨基酸残基或肽残基。Z 代表与 Y 的 C 端结合的基团,代表 OH 基团或 OR″ 基团。当 Y 是胱氨酸残基以外的氨基酸残基或 Y 是不含胱氨酸残基的肽残基时,m=1;当 Y 是含 n 个胱氨酸残基的肽残基时,m=n+1,n 为 1 或 2。)
Slimmer, Chemische Berichte, 1902, vol. 35, p. 409