TY - GEN AU - OHTA,M TI - Studies on abietic acid derivatives. III. Synthesis of fluorenone derivatives SN - 0369-9471 PY - 2000///0701 KW - Abietanes KW - Acids N1 - Publication Type: Journal Article UR - https://doi.org/10.1248/cpb1953.5.256 ER -