949588-04-9Relevant articles and documents
Method for preparing long aliphatic chain diacid derivative and application of long aliphatic chain diacid derivative
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Paragraph 0134-0137, (2021/07/01)
The invention provides a method for preparing a long aliphatic chain diacid derivative. The method comprises the following steps of: (1) carrying out a cyclization reaction on long aliphatic chain diacid, the long aliphatic chain diacid having a structure as shown in a formula (A); (2) reacting the long aliphatic chain diacid cyclization product with benzyl alcohol to obtain long aliphatic chain diacid monobenzyl ester; (3) carrying out an esterification reaction on the long aliphatic chain diacid monobenzyl ester and N-hydroxysuccinimide so as to obtain long aliphatic chain diacid succinimide benzyl ester; (4) carrying out a nucleophilic addition amidation reaction on the long aliphatic chain diacid succinimide benzyl ester and a compound as shown in a formula (B) to obtain a compound as shown in a formula (C); (5) carrying out an esterification reaction on the compound as shown in the formula (C) and N-hydroxysuccinimide again so as to obtain a compound as shown in a formula (D); and (6) carrying out a debenzylation reaction on the compound shown in the formula (D) so as to obtain a compound shown in a formula (E).
Method for preparing long-chain fatty diacid monobenzyl ester and application of long-chain fatty diacid monobenzyl ester
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Paragraph 0131-0134, (2020/07/12)
The invention provides a method for preparing long-chain fatty acid monobenzyl ester. The method comprises the following steps: 1) carrying out esterification reaction on long-chain fatty diacid to obtain long-aliphatic chain dibenzyl ester; and 2) carrying out hydrolysis reaction on the long-aliphatic chain dibenzyl ester to obtain long-chain fatty diacid monobenzyl ester; wherein the long-chainfatty diacid has a structure shown as formula (A), and X is an integer of 6-32. Compared with the prior art, the method has the advantages of cheap and easily available reaction reagent, simple operation, low product related impurity content, simple intermediate purification, short production period, high yield, low cost, little generated waste liquid, no generation of solid waste and low environmental protection pressure.
ACYLATED SINGLE CHAIN INSULIN
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Page/Page column 27, (2008/06/13)
The invention is related to an acylated, single-chain insulin comprising the B- and the A-chain of human insulin or an analogue thereof connected by a connecting peptide, wherein a lysine residue being substituted for the natural amino acid residue in at