1 KL5 1-[7,7-bis(oxidanyl)-8-oxa-7-boranuidabicyclo[4.3.0]nona-1(6),2,4-trien-4-yl]-3-(phenylmethyl)thiourea 1.000 2 R29 1-[7,7-bis(oxidanyl)-8-oxa-7-boranuidabicyclo[4.3.0]nona-1,3,5-trien-4-yl]-3-(phenylmethyl)urea 0.913 3 WHK 1-[1,1-bis(oxidanyl)-3,4-dihydro-2,1$L^{4}-benzoxaborinin-7-yl]-3-(phenylmethyl)thiourea 0.875