section 1010(b) of the Controlled Substances Import and Export Act ( 21 U.S.C. 960(b) ), relating to manufacturing, distributing, dispensing, or possessing with intent to manufacture, distribute, or dispense, a mixture or substance containing a detectable amount of N-phenyl-N-[1-(2-phenylethyl)-4-piperidinyl] propanamide, or any analogue thereof if the sentencing court finds that the offender was an organizer, leader, manager, or supervisor of others in the offense, as determined under the guidelines promulgated by the United States Sentencing Commission. (lii) Subparagraph (A) or (B) of section 401(b)(1) of the Controlled Substances Act ( 21 U.S.C. 841(b)(1) ) or paragraph (1) or (2) of section 1010(b) of the Controlled Substances Import and Export Act ( 21 U.S.C. 960(b) ), relating to manufacturing, distributing, dispensing, or possessing with intent to manufacture, distribute, or dispense, a controlled substance, or knowingly importing or exporting a controlled substance, if the sentencing court finds that— (I) the offense involved a mixture or substance containing a detectable amount of N-phenyl-N-[1-(2-phenylethyl)-4-piperidinyl] propanamide, or any analogue thereof