Cheng, Jin-tao published the artcileSynthesis of 1-(mercaptomethyl)cyclopropane acetic acid, Related Products of quinuclidine, the publication is Guangzhou Huagong (2010), 38(6), 92-93, database is CAplus.
1-(Mercaptomethyl) cyclopropane acetic acid, the key intermediate of montelukast, was prepared from 1,1-bis(hydroxymethyl)cyclopropane by ring-formation reaction, cyanation reaction, esterification reaction, aldol reaction, and hydrolytic reaction, with 49.5% overall yield.
Guangzhou Huagong published new progress about 162515-68-6. 162515-68-6 belongs to quinuclidine, auxiliary class Thiol,Carboxylic acid,Aliphatic cyclic hydrocarbon, name is 2-(1-(Mercaptomethyl)cyclopropyl)acetic acid, and the molecular formula is C6H10O2S, Related Products of quinuclidine.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider