Patent ID: 11964965
Assignee: ON TARGET LABORATORIES, INC.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A method for synthesizing a compound of formula (I), , wherein:
R1 is (CH2)n and n is 1 or 3,
R2 is Br, I, or X—R3, wherein X is (CH2)m, NH, O, S, or Se,
m is 0, 1, 2, or 3,
R3 is (CH2)pCH(R4)COOH or C6H4—(CH2)pCH(R4)COOH or (CH2)pCOOH or (CH2)pNH2 and p is 0, 1, 2, or 3,
R4 is H or NHR5,
R5 is H or alkyl group,
R8 is (CH2)qSO3H and q is 0, 1, 2, or 3, and
A is sodium, calcium, magnesium, lithium, cholinate, lysinium, ammonium, or hydrogen comprising the steps of
(a) reacting a compound of a formula, with a compound of a formula, in the presence of an acetate salt to generate a compound of the formula, (b) reacting the resulting compound with a compound of the formula, in the presence of 1,2-dichlorobenzene to generate a compound of the formula, (c) reacting a compound of the formula, in the presence of an acetate salt, sultone, and 1,2-dichlorobenzene to generate a compound of the formula, (d) reacting the compound of the formula, with a compound of the formula, in the presence of an acetate salt to generate a compound of the formula, wherein the resulting compound is selected from the group consisting of:,