Natural product-like combinatorial libraries based on privileged structures. 2. Construction of a 10 000-membered benzopyran library by directed split-and-pool chemistry using NanoKans and optical encoding
Kc. Nicolaou et al., Natural product-like combinatorial libraries based on privileged structures. 2. Construction of a 10 000-membered benzopyran library by directed split-and-pool chemistry using NanoKans and optical encoding, J AM CHEM S, 122(41), 2000, pp. 9954-9967
Having developed a reliable and versatile solid-phase strategy for the spli
t-and-pool synthesis of naturally occurring and designed derivatives of the
benzopyran template (see preceding paper), we now report the construction
of a 10 000-membered natural product-like compound library for chemical bio
logy studies. Concomitantly, we report an early application of the IRORI Na
noKan optical encoding system for the high throughput nonchemical tagging a
nd sorting of library members during split-and-pool synthesis. The overall
synthetic strategy for library construction is discussed and the individual
reaction pathways are examined in the context of specific library members,
illustrating reaction conditions as well as yields and purities, The issue
s of building block selection and quality control of library members are al
so addressed and, finally, potential applications of the library to chemica
l biology are discussed.