Ring-closing and ring-opening reactions on DNA.

Entry	DNA-compatible reactions	Conditions
1		Na2CO3, sodium ascorbate, H2O, 35 °C, 3 h
2		Sodium borate buffer, MDAc/H2O, 20 °C,16 h
3		90% aq. DMSO, RT, 1 h
4		DMSO/H2O/glycerol (2 : 1 : 0.2), LED array
5		MeCN : H2O, DMSO, Et3N, borate buffer, RT, 16 h
6		Borate buffer, H2O, RT
7		1.6 mM cyclization reagent
		20% MeCN
		80% NH4HCO3 buffer, pH8
		30 °C, 2 h; TCEP
		NH4HCO3 buffer, pH 8, RT, 1 h
8		pH 9.5 borate buffer, viologen; 80 °C, 12 h
9		pH 8.2 borate, Na2CO3; pH 8.0 phose. Buffer, PyAOP; CH3CN, buffer, heat
10		TFA, CH2Cl2,
11		i-PrOH/NMP (1 : 1)
		pH 5.5 phosphate buffer
12		H2O, micellar catalysis
13		ACN/H2O, 50 °C