<s>
Late-stage	B-Algorithm
functionalization	I-Algorithm
(	O
LSF	O
)	O
is	O
a	O
desired	O
,	O
chemical	O
or	O
biochemical	O
,	O
chemoselective	O
transformation	O
on	O
a	O
complex	O
molecule	O
to	O
provide	O
at	O
least	O
one	O
analog	O
in	O
sufficient	O
quantity	O
and	O
purity	O
for	O
a	O
given	O
purpose	O
without	O
needing	O
the	O
addition	O
of	O
a	O
functional	O
group	O
that	O
exclusively	O
serves	O
to	O
enable	O
said	O
transformation	O
.	O
</s>
