Patent ID: 9598348
Date: 2017-03-21
CPC Classifications: B01J,C07C,C07D,C07F

Claim:
1. A method for obtaining a compound of formula (I): wherein R 1 is an aliphatic chain of the formula —(CH2) n -; n represents an integer from 0 to 9; X and Y have a proportion of from 1:1 to 1:20; —OCO—(CNH)—R 2 —R 2 ′ represents an α-amino acid selected from the group consisting of the method comprising: protecting an amino group of the α-amino acid by reacting the α-amino acid with di-tert-butyl carbonate to obtain a protected α-amino acid; (ii) reacting a carboxyl group of the protected α-amino acid with aminopropyltriethoxysilane (APTES) to obtain a protected and silanized α-amino acid; (iii) polymerizing the protected and silanized α-amino acid by reacting with a silicon alkoxide, and optionally an acid catalyst or a base catalyst, to obtain a polymerized product, wherein a ratio of the protected and silanized α-amino acid to the silicon alkoxide is in a range of 1:1 to 1:20; and (iv) deprotecting the amino group of the α-amino acid in the polymerized product with an acid selected from the group consisting of trifluoroacetic acid and 3M hydrochloric acid in ethyl acetate, thereby obtaining the compound of formula (I).