Patent ID: 9664696
Date: 2017-05-30
CPC Classifications: C07D,G01N

Claim:
1. A method, comprising: providing an H wherein R 1 is selected from an azide, fluoro, bromo, iodo, mesylate, besylate, tosylate, triflate, ether, or thioether; R each R at least one of B, C, D, or E is carbon bound to R n is 0, 1, 2, or 3; m is 0, 1, or 2; ring A is selected from wherein R 6 is a heterocyclyl or a heteroaryl; and wherein the H 2 S-reactive compound is other than 4-azido-7-nitrobenzo[c][1,2,5]oxadiazole and 2-(6-((4-boronobenzyl)oxy)benzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid; exposing a sample to the H analyzing the sample for a reaction product obtained from reaction between the H